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Context of '(9:50 a.m.) September 11, 2001: Delta Air Lines Reports Four Missing Planes'

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Jackie Chan.Jackie Chan. [Source: Reuters]A scene for a Hollywood movie about a terrorist plot to blow up the World Trade Center was originally scheduled to be filmed at the top of one of the Twin Towers at this time, but the filming has been canceled because the script for the scene is late to arrive. (ABC News 9/19/2001; Empire 9/19/2001; Moore 9/27/2002) The action-comedy movie, titled Nosebleed, which was written in 1999 (see February 1999-September 11, 2001), is set to feature the well-known martial artist and actor Jackie Chan as a window washer at the WTC who uncovers a terrorist plot to bomb the Twin Towers. (Carver and Petrikin 2/7/1999; Jensen and Svetkey 9/24/2001)
Actor 'Would Probably Have Died' if Filming Took Place - Chan will later tell the Hong Kong newspaper Oriental Daily News, “Filming was scheduled to have taken place at 7:00 a.m. [on September 11] and… I had to be at the top of one of the towers for one of the scenes.” (ABC News 9/19/2001; Empire 9/19/2001) The scene, Chan will say, was going to be filmed at the “Top of the World restaurant.” (Moore 9/27/2002) Presumably he is referring to Windows on the World, the restaurant at the top of the North Tower. Everyone who is in Windows on the World when Flight 11 hits the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001) will subsequently die. (NPR 9/11/2003) Chan will comment, “I would probably have died if the shooting had gone ahead as planned.” Today’s filming at the WTC has been canceled, reportedly because the script for the scene that would have been filmed is late. (ABC News 9/19/2001; Empire 9/19/2001) “The action was good, but, somehow, the script not ready,” Chan will say.
Actor Is in Canada for Another Film - Instead of doing the scene for Nosebleed, Chan is in Toronto, Canada, where filming began the previous day for another movie he is starring in. That movie, The Tuxedo, is an action-comedy that Steven Spielberg is involved in producing. Chan will say of The Tuxedo, “I only did this movie because Steven Spielberg asked me himself.” (Tourtellotte 6/17/2001; Bickley 7/11/2001; Moore 9/27/2002) He will recall learning of the attacks in New York during filming, saying: “After the first shot, I turned around and everyone was looking at one monitor, and nobody had responded to me. They said, ‘Jackie, a plane crashed into the World Trade Center.’ Then we [saw] the second plane crash. We knew it was a terrorist attack and everyone started crying.” Chan will add, “The whole day I was like a walking dead man.” (Klass 9/23/2002)
Actor Learned 'Secrets' of the WTC in Preparation for Film - Chan has done a lot of groundwork for Nosebleed. “We had visited the [WTC] before September 11,” he will recall. “The producer. My manager. We had dinner upstairs. We were getting all kinds of information. I was going to play a window washer, so they were telling me things like how many windows the building had.” Chan has therefore learned “the ‘secrets’ of the towers—how air pressure was regulated with doors that might be useful as gags in one of his trademark fights—which sides of the buildings one could work on to avoid the wind,” according to the Orlando Sentinel. (Moore 9/27/2002; Denerstein 9/28/2002) Production of Nosebleed will be canceled as a result of the 9/11 attacks. (Aberman 10/24/2001; Hoberman 12/4/2001)

American Airlines has problems contacting the FAA’s Command Center in Herndon, Virginia, about the problems with its aircraft, according to four managers working at the airline’s System Operations Control (SOC) center in Fort Worth, Texas, on this day. Craig Marquis, Craig Parfitt, Joe Bertapelle, and Mike Mulcahy will later tell the 9/11 Commission that American Airlines has “a hard time on 9/11 in getting in touch with Herndon.” They will say that “[p]recious minutes were lost in building the communications bridge” between the SOC and the Command Center. The cause of these communication problems is unknown. (9/11 Commission 11/19/2003 pdf file) The SOC has known that there are problems on Flight 11 since 8:21 a.m., when Marquis received a call from a supervisor at the airline’s Southeastern Reservations Office in North Carolina, alerting him to a call that had been received from one of the plane’s flight attendants about the emergency taking place (see 8:21 a.m. September 11, 2001). Presumably the SOC starts trying to contact the FAA Command Center soon after receiving this call. It is known that the SOC will make contact with the Command Center at 9:16 a.m., if not earlier (see 9:16 a.m.-9:18 a.m. September 11, 2001). (9/11 Commission 8/26/2004, pp. 9, 15) Bill Halleck, an air traffic control specialist at the SOC, is at least able to reach the FAA’s Boston Center regarding Flight 11 at 8:29 a.m. (see 8:29 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 5, 453) The four American Airlines managers will also tell the 9/11 Commission, “In the event that the [American Airlines] SOC was aware that it was the first to know about an incident [with an aircraft], the protocol would have been for the SOC manager on duty [i.e. Marquis] to have immediately autodialed to the Herndon manager on duty [i.e. Ben Sliney] with the information.” However, the FAA “knew what was going on because of the intercepted communications from the cockpit.” (9/11 Commission 11/19/2003 pdf file) (FAA air traffic controllers have been aware of problems with Flight 11 since around 8:14 a.m., when they lost communication with the plane (see 8:14 a.m.-8:24 a.m. September 11, 2001), and they subsequently hear communications made by the hijackers on the plane, beginning at 8:24 a.m. (see 8:24 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 18-19) )

Pete Zalewski.Pete Zalewski. [Source: NBC]Because the talkback button on Flight 11 has been activated, Boston Center air traffic controllers can hear a hijacker on board say to the passengers: “We have some planes. Just stay quiet and you’ll be OK. We are returning to the airport.” (Johnson 11/23/2001; 9/11 Commission 7/24/2004, pp. 19) Air traffic controller Pete Zalewski recognizes this as a foreign, Middle Eastern-sounding voice, but does not make out the specific words “we have some planes.” He responds, “Who’s trying to call me?” Seconds later, in the next transmission, the hijacker continues: “Nobody move. Everything will be OK. If you try to make any moves you’ll endanger yourself and the airplane. Just stay quiet.” (Wald and Sack 10/16/2001; 9/11 Commission 6/17/2004; MSNBC 9/9/2006) Bill Peacock, the FAA director of air traffic services, later claims, “We didn’t know where the transmission came from, what was said and who said it.” David Canoles, the FAA’s manager of air traffic evaluations and investigations, adds: “The broadcast wasn’t attributed to a flight. Nobody gave a flight number.” (Murray 9/11/2002) Similarly, an early FAA report will state that both these transmissions came from “an unknown origin.” (Federal Aviation Administration 9/17/2001 pdf file) Zalewski asks for an assistant to help listen to the transmissions coming from the plane, and puts its frequency on speakers so others at Boston Center can hear. Because Zalewski didn’t understand the initial hijacker communication from Flight 11, the manager of Boston Center instructs the center’s quality assurance specialist to “pull the tape” of the transmission, listen to it carefully, and then report back. They do this, and by about 9:03 a.m. a Boston manager will report having deciphered what was said in the first hijacker transmission (see 9:03 a.m. September 11, 2001). (9/11 Commission 6/17/2004; MSNBC 9/9/2006) Fellow Boston controller Don Jeffroy also hears the tape of the hijacker transmissions, though he doesn’t state at what time. He says: “I heard exactly what Pete [Zalewski] heard. And we had to actually listen to it a couple of times just to make sure that we were hearing what we heard.” (MSNBC 9/11/2002) At some point, Ben Sliney, the national operations manager at the FAA’s Herndon Command Center, gets word of the “We have some planes” message, and later says the phrase haunts him all morning. American Airlines Executive Vice President for Operations Gerard Arpey is also informed of the “strange transmissions from Flight 11” at some point prior to when it crashes at 8:46 a.m. (Levin, Adams, and Morrison 8/12/2002) Boston Center will receive a third transmission from Flight 11 about ten minutes later (see (8:34 a.m.) September 11, 2001).

Boston flight control reportedly “notifies several air traffic control centers that a hijack is taking place.” (Ellison 10/17/2001) This is immediately after Boston controllers heard a transmission from Flight 11, declaring, “We have some planes” (see 8:24 a.m. September 11, 2001), and would be consistent with a claim later made to the 9/11 Commission by Mike Canavan, the FAA’s associate administrator for civil aviation security. He says, “[M]y experience as soon as you know you had a hijacked aircraft, you notify everyone.… [W]hen you finally find out, yes, we do have a problem, then… the standard notification is it kind of gets broadcast out to all the regions.” (9/11 Commission 5/23/2003) An early FAA report will say only that Boston controllers begin “inter-facility coordination” with New York air traffic control at this time (Federal Aviation Administration 9/17/2001 pdf file) , but the New York Times reports that controllers at Washington Center also know “about the hijacking of the first plane to crash, even before it hit the World Trade Center.” (Wald 9/13/2001) However, the Indianapolis flight controller monitoring Flight 77 claims to not know about this or Flight 175’s hijacking twenty minutes later at 8:56 a.m. (see 8:56 a.m. September 11, 2001). Additionally, the flight controllers at New York City’s La Guardia airport are never told about the hijacked planes and learn about them from watching the news. (Kelly 1/4/2004) Boston Center also begins notifying the FAA chain of command of the suspected Flight 11 hijacking at this time (see 8:25 a.m. September 11, 2001), but it does not notify NORAD for another 6-15 minutes, depending on the account (see (8:37 a.m.) September 11, 2001).

A Sikorsky S-76A helicopter flying over New York.
A Sikorsky S-76A helicopter flying over New York. [Source: Sikorsky]A helicopter is tracked on radar apparently crashing into the World Trade Center, according to a report later given by a New York air traffic controller over an FAA teleconference.
Helicopter Is 'the Only Target that We Saw ... to Fly into the Trade Center' - At around 10:15 a.m., Tom White, an operations manager at the FAA’s New York Terminal Radar Approach Control (TRACON), will tell those on the FAA teleconference that his facility tracked a Sikorsky helicopter that had taken off from the airport in Poughkeepsie, New York, and this helicopter appeared to fly into the WTC at 8:27 a.m. (see (10:15 a.m.) September 11, 2001). White will add that, after replaying radar information, it is concluded that the helicopter is “the only target that we saw in the vicinity of the Trade Center at 12:27 [Zulu time, or 8:27 a.m. Eastern time] to fly into the Trade Center.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 5/21/2004) (However, the first crash at the WTC will not occur until 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7) ) The “Poughkeepsie airport” the helicopter took off from is presumably Dutchess County Airport. Sikorsky reportedly bases a fleet of its S-76 helicopters at Dutchess County Airport, “dispatching them to the New York metro areas as needed.” (Venable 5/2000; Wagstaff 8/1/2003) Poughkeepsie is about 70 miles north of New York City. (Sherman 2/3/2008)
Helicopter 'Consistent with the Speed' of What Hits WTC - White will say the helicopter’s tail number is N7601S, that it departed the Poughkeepsie airport at 8:03 a.m., and that it then headed south at a speed of around 160 knots, or 184 miles per hour. He will add: “The tower [presumably the air traffic control tower at the Poughkeepsie airport] says the only thing they had southbound at that time was a Sikorsky helicopter, which is consistent with the speed that we followed it down.… They’re saying they replayed the radar and it’s consistent with the speed of what went into the [WTC] tower.” (Federal Aviation Administration 9/11/2001) (However, an analysis by the US government will later estimate that Flight 11 hits the WTC at 494 miles per hour, or 429 knots, which is significantly faster than the helicopter was flying. (Lipton and Glanz 2/23/2002) )
Mistaken Information Later Corrected - It will apparently take until early afternoon for the suspicions about the Sikorsky helicopter hitting the WTC to be dismissed. An FAA chronology of this day’s events will state that at 1:00 p.m., the “Sikorsky helicopter” is “now believed not to have hit the WTC.” (Federal Aviation Administration 1/2/2002) Another FAA chronology will state that at 1:04 p.m., it is reported that the Sikorsky helicopter “landed 20 minutes early, normal GE run at 12:28Z [i.e. 8:28 a.m. Eastern time] to WTC.” (It is unclear what is meant by “normal GE run.”) (Federal Aviation Administration 9/11/2001)

The FAA Command Center, the center of daily management of the US air traffic system. On 9/11 it is managed by Ben Sliney (not pictured here).The FAA Command Center, the center of daily management of the US air traffic system. On 9/11 it is managed by Ben Sliney (not pictured here). [Source: CNN]The FAA’s Boston Center calls the FAA Command Center and says it believes Flight 11 has been hijacked and is heading toward the New York Center’s airspace. The Command Center immediately establishes a teleconference between the Boston, New York, and Cleveland air traffic control centers, so Boston can help the other centers understand what is happening, in case Flight 11 should enter their airspace. Minutes later, in line with the standard hijacking protocol, the Command Center will pass on word of the suspected hijacking to the FAA’s Washington headquarters (see 8:32 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 19; 9/11 Commission 8/26/2004, pp. 11; Spencer 2008, pp. 21)
National Operations Manager Learns of Hijacking - A supervisor at the Command Center promptly passes on the news of the possible hijacking to Ben Sliney, who is on his first day as the national operations manager there. The supervisor says the plane in question is “American Flight 11—a 767 out of Boston for Los Angeles.” According to author Lynn Spencer, “Sliney flashes back to the routine for dealing with hijackings from the days when they were more common.” The procedure is to “[k]eep other aircraft away from the errant plane. Give the pilots what they need. The plane will land somewhere, passengers will be traded for fuel, and difficult negotiations with authorities will begin. The incident should resolve itself peacefully, although the ones in the Middle East, he recalls, often had a more violent outcome.” Apparently not expecting anything worse to happen, Sliney continues to the conference room for the daily 8:30 staff meeting there (see 8:30 a.m.-8:40 a.m. September 11, 2001).
Command Center a 'Communications Powerhouse' - The FAA Command Center is located in Herndon, Virginia, 25 miles from Washington, DC. According to Spencer, it “is a communications powerhouse, modeled after NASA’s Mission Control. The operations floor is 50 feet wide and 120 feet long, packed with tiered rows of computer stations, and at the front, seven enormous display screens show flight trajectories and weather patterns.” The center has nearly 50 specialists working around the clock, planning and monitoring the flow of air traffic over the United States. These specialists work with airlines and air traffic control facilities to fix congestion problems and deal with weather systems. (Spencer 2008, pp. 1 and 19-20)

Steve Bongardt.Steve Bongardt. [Source: Government Matters]Steve Bongardt, an agent at an FBI office in Manhattan, reads a report on his computer about Osama bin Laden reopening his underground facility in Afghanistan and he will subsequently determine that this incident is related to the attacks on the World Trade Center. (Wright 2006, pp. 356-357; Graff 2011, pp. 309-310) Bongardt is a member of the FBI’s I-49 squad. (Wright 2006, pp. 377) The squad is focused on bin Laden and al-Qaeda’s central command. It is based in an office on the eighth floor at 290 Broadway, across the street from the FBI’s New York field office at 26 Federal Plaza. (Graff 2011, pp. 205-206) Bongardt is one of the first people to arrive at the office this morning, coming into work sometime before 8:30 a.m. He turns on his computer and reads some of the day’s intelligence. He is puzzled by one particular piece of information he sees. “A report had Osama bin Laden reopening his large underground facility at Tora Bora in Afghanistan and sprucing it up,” journalist and author Garrett Graff will write. According to author Lawrence Wright, the report states that “the al-Qaeda camps in Tora Bora [are] being revitalized.” (Wright 2006, pp. 356-357; Graff 2011, pp. 309) The Tora Bora encampment is a “natural and manmade fortress of caves and bunkers,” according to the Chicago Tribune. It comprises a “series of rooms and tunnels,” and can “comfortably house 1,000 people,” according to an Afghan who visited the complex a few months ago. (Diamond and Lev 11/28/2001) “That can’t be good,” Bongardt thinks upon reading the report. “What the hell is [bin Laden] doing?” he wonders. Bongardt will feel the room shake when Flight 11 crashes into the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and promptly head out of the building. He will realize what has happened when he sees that both of the Twin Towers are on fire and notices a massive jetliner engine lying on the street. He will then connect what is occurring to the report he read on his computer. He will understand that “this was the work of bin Laden,” according to Wright. “This is al-Qaeda. This is why they’re polishing up Tora Bora,” he will think. (Wright 2006, pp. 357-359; Graff 2011, pp. 309-310)

Captain Charles Leidig. 
Captain Charles Leidig. [Source: US Navy]Brigadier General Montague Winfield, the deputy director for operations (DDO) in the National Military Command Center (NMCC) at the Pentagon, leaves his post to attend a pre-scheduled meeting, allowing a colleague, who only recently qualified to take over his position, to stand in for him, and not returning to his post until after the terrorist attacks have ended. (9/11 Commission 7/21/2003 pdf file; 9/11 Commission 4/29/2004 pdf file; 9/11 Commission 6/17/2004)
Winfield Attends Air Force-Convened Meeting - Winfield leaves his post to attend what a 9/11 Commission memorandum will call “an unrelated, closed-door personnel meeting convened by the Air Force to discuss the rating of Air Force officers.” (9/11 Commission 7/21/2003 pdf file) Another Commission memorandum will state that this meeting is a “session for general officers who rated Air Force officers.” It is unclear whether the meeting takes place somewhere in the NMCC or outside the center. The Commission memorandum will only say that it takes place “elsewhere in [Joint Chiefs of Staff] spaces.” At least one of the NMCC’s other qualified DDOs, Brigadier General Norman Seip, is also attending it.
Winfield Asked Colleague to Replace Him on Previous Day - Winfield is temporarily replaced as DDO by Captain Charles Leidig. Leidig only joined the operations directorate of the Joint Chiefs of Staff in July 2001, when he assumed duties as the deputy for Command Center operations. In that, his usual role, he is responsible for the maintenance, operation, and training of watch teams for the NMCC. He qualified to stand in as the DDO in the NMCC about a month ago, in August 2001. The previous afternoon, Winfield asked Leidig to relieve him for a portion of his duty this morning, and Leidig agreed to do so.
Leidig Takes Over as DDO - As arranged, Leidig takes over from Winfield as DDO at 8:30 a.m., allowing Winfield to attend his meeting. Upon arrival at the NMCC, Leidig receives the intelligence and other turn over briefings. After seeing the reports of the plane crashes in New York on television, he will be responsible for convening a significant event conference (see 9:29 a.m.-9:34 a.m. September 11, 2001), which he soon upgrades to an air threat conference (see 9:37 a.m.-9:39 a.m. September 11, 2001). (9/11 Commission 4/29/2004 pdf file; 9/11 Commission 6/17/2004 pdf file)
Winfield Does Not Resume Duties until Attacks Are Over - Even though it becomes obvious that a coordinated attack is under way when television shows the second plane hitting the World Trade Center at 9:03 a.m. (see 9:03 a.m. September 11, 2001), Winfield apparently remains in his meeting instead of resuming his duties as DDO (see (Shortly After 9:03 a.m.) September 11, 2001). He will only take over from Leidig as DDO after Flight 93 crashes in Pennsylvania, apparently at around 10:30 a.m. (see (10:30 a.m.) September 11, 2001). (9/11 Commission 4/29/2004 pdf file; 9/11 Commission 6/17/2004) In later interviews for television, Winfield will give the impression that he remained in charge of the NMCC throughout the 9/11 attacks, and make no mention of having allowed a stand-in to take his place during this most critical period of time. (CNN 9/4/2002; ABC News 9/11/2002)

Flight controllers hear a hijacker on Flight 11 say to the passengers: “Nobody move, please, we are going back to the airport. Don’t try to make any stupid moves.” (Wald and Sack 10/16/2001; Ellison 10/17/2001; Johnson 11/23/2001; 9/11 Commission 6/17/2004) This is the third hijacker transmission from Flight 11 heard by Boston Center. Following the previous two transmissions, controller Pete Zalewski had put the plane’s frequency on speakers so that others at the center could hear (see 8:24 a.m. September 11, 2001). This is therefore the first time some of them hear the hijacker’s voice. One controller says out loud, “That is really scary.” (MSNBC 9/11/2002)

NORAD fails to notify the National Military Command Center (NMCC) at the Pentagon that aircraft have been hijacked before the NMCC initiates a significant event conference in response to the terrorist attacks. (9/11 Commission 6/9/2004) NORAD’s Northeast Air Defense Sector (NEADS) was alerted to the first hijacking, of Flight 11, at 8:37 a.m. (see (8:37 a.m.) September 11, 2001) and it is alerted to the second hijacking, of Flight 175, at 9:03 a.m. (see (9:03 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 20, 23) And yet, according to an after-action report produced by the NMCC, NORAD does not contact the NMCC to alert it to these incidents before the significant event conference commences, at 9:29 a.m. (see 9:29 a.m.-9:34 a.m. September 11, 2001). (9/11 Commission 6/9/2004)
NORAD Does Not Provide Information to Deputy Director - Captain Charles Leidig, the acting deputy director for operations in the NMCC, will later say that he “does not remember getting a lot of information from NORAD” before the significant event conference begins. (9/11 Commission 4/29/2004 pdf file) NMCC personnel apparently learn that an aircraft has been hijacked when an officer in the center calls the FAA at 9:00 a.m. (see 9:00 a.m. September 11, 2001). (9/11 Commission 4/29/2004 pdf file; 9/11 Commission 5/5/2004; 9/11 Commission 7/24/2004, pp. 35)
NORAD First Mentions a Hijacking at 9:33 a.m. - NORAD will apparently talk to the NMCC about a hijacking for the first time at around 9:33 a.m., when its representative on the significant event conference states that they “concur that [a] hijacked aircraft is still airborne [and] heading towards Washington, DC.” (US Department of Defense 9/11/2001; US Department of Defense 9/11/2001 pdf file) (They will presumably be referring to the incorrect information that Flight 11 is still in the air after it has crashed into the World Trade Center (see 9:21 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 26) )
NORAD Does Not Request a Conference - Additionally, according to the NMCC’s after-action report, NORAD “does not request any conference at [National Command Authority] level” prior to the commencement of the significant event conference. (9/11 Commission 6/9/2004) The significant event conference is actually initiated by Leidig. The NMCC has an important role to play in an emergency like the current crisis. Its job under these circumstances “is to gather the relevant parties and establish the chain of command between the National Command Authority—the president and the secretary of defense—and those who need to carry out their orders,” according to the 9/11 Commission Report. (9/11 Commission 4/29/2004 pdf file; 9/11 Commission 7/24/2004, pp. 37) It is also “the focal point within [the] Department of Defense for providing assistance” when there is a hijacking in US airspace, according to a recent military instruction (see June 1, 2001). (US Department of Defense 6/1/2001 pdf file)

Colin Scoggins, the military liaison at the FAA’s Boston Center, calls the FAA’s New York Center but is quickly cut off when the air traffic controller who answers says the center is busy dealing with a hijacking. According to author Lynn Spencer, Scoggins “calls New York Center to notify them that American 11 appears to be descending toward New York, most likely to land at JFK” International Airport. But the controller who takes the call snaps at him: “We’re too busy to talk. We’re working a hijack,” and then hangs up. According to Spencer, the New York Center controller is referring to Flight 175, but “Scoggins just figures that he’s talking about American 11. He has no idea that a second airliner is in crisis.” However, the timing of this call is unclear. If it is made while Flight 11 is descending toward New York, this would mean it occurs in the minutes before 8:46, when Flight 11 crashes (see 8:46 a.m. September 11, 2001). But in Spencer’s account, the call is made just after New York Center controller Dave Bottiglia notices that Flight 175’s transponder code has changed and he calls out to another controller, “I can’t get a hold of UAL 175 at all right now and I don’t know where he went to” (see 8:51 a.m.-8:53 a.m. September 11, 2001). (Spencer 2008, pp. 48-49) The transcript of radio communications between the New York Center and Flight 175 shows that this would mean Scoggins’s call occurs around 8:53 a.m.-8:54 a.m., about seven minutes after Flight 11 crashes. (New York Times 10/16/2001)

Victor Saracini.Victor Saracini. [Source: Family photo]Just after Flight 175 enters the airspace of the FAA’s New York Center (see 8:40 a.m. September 11, 2001), its pilot reports to the air traffic controller now managing the flight a suspicious transmission he had heard on departing Boston’s Logan Airport. The pilot, Captain Victor Saracini, tells the controller, Dave Bottiglia: “We figured we’d wait to go to your center. Ah, we heard a suspicious transmission on our departure out of Boston, ah, with someone, ah, it sounded like someone keyed the mikes and said, ah, ‘Everyone, ah, stay in your seats.’” (New York Times 10/16/2001; 9/11 Commission 7/24/2004, pp. 21; Spencer 2008, pp. 36) Saracini is presumably referring to one of the three radio transmissions from Flight 11, where the voice of a hijacker could be heard (see 8:24 a.m. September 11, 2001 and (8:34 a.m.) September 11, 2001). However, none of these had included the hijacker telling people to stay in their seats, as Saracini describes, although the second and third transmissions included the hijacker telling the passengers, “Nobody move.” (9/11 Commission 7/24/2004, pp. 19) Bottiglia responds: “Oh, okay. I’ll pass that along.” Referring to the fact that this was the end of the transmission he heard, Saracini adds, “It cut out,” and then asks Bottiglia, “Did you copy that?” (Gregor 12/21/2001 pdf file; Spencer 2008, pp. 36-37) This is the last radio transmission from Flight 175. The 9/11 Commission will conclude that the plane is hijacked within the next four minutes (see (Between 8:42 a.m. and 8:46 a.m.) September 11, 2001). (9/11 Commission 8/26/2004, pp. 20) According to author Lynn Spencer, since controllers are only given information on a need-to-know basis, Bottiglia was unaware there were problems with Flight 11, which has not yet entered his airspace. He touches his computer screen to connect to the hotline for his sector controller, and then reports: “UAL 175 just came on my frequency and he said he heard a suspicious transmission when they were leaving Boston. ‘Everybody stay in your seats’—that’s what he heard… just to let you know.” (New York Times 10/16/2001; Spencer 2008, pp. 36-37)

Employees at the American Airlines Southeastern Reservations Office in Cary, North Carolina, lose communication with Betty Ong, a flight attendant on the hijacked Flight 11. (American Airlines 9/11/2001, pp. 20-22; 9/11 Commission 7/24/2004, pp. 5-6)
Ong Stops Responding to Questions - For about the last 25 minutes, Ong has been on the phone with a number of employees at the reservations office, and has been providing them with information about the trouble on her plane. (9/11 Commission 8/26/2004, pp. 8) But now she stops responding to their communications. Nydia Gonzalez, one of the reservations office employees, continues questioning Ong. She says: “What’s going on Betty? Betty, talk to me. Betty, are you there? Betty?” Receiving no response, she asks her colleague Winston Sadler, who is also participating in the call, “Do you think we lost her?” On another phone line, Gonzalez immediately notifies a manager at the American Airlines System Operations Control center in Texas that contact with Ong has been lost (see 8:44 a.m. September 11, 2001). (American Airlines 9/11/2001, pp. 20-22; 9/11 Commission 8/26/2004, pp. 14)
Ong Asked Airline Employees to 'Pray for Us' - Toward the end of the call, Ong said repeatedly to the reservations office employees: “Pray for us. Pray for us.” (ABC News 7/18/2002) Gonzalez will say in an interview later today that Ong’s final words, before the call ends, were, “Oh my God, the flight, it’s going down, it’s going down.” (Federal Bureau of Investigation 9/11/2001, pp. 1-8) But in a subsequent interview, she will say that before the call ends, Ong “started to cry” and then her final words were, “Oh God, oh God, what is going on?” (Federal Bureau of Investigation 9/12/2001, pp. 69-71) The reservations office employees have lost communication with Ong by 8:44 a.m., according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 6) But according to a summary of phone calls from the hijacked flights presented at the 2006 trial of Zacarias Moussaoui, the call from Ong began at 8:18 a.m. and 47 seconds, and lasts exactly 27 minutes, meaning it ends at 8:45 a.m. and 47 seconds. (US District Court for the Eastern District of Virginia, Alexandria Division 7/31/2006) Flight 11 will crash into the World Trade Center less than a minute after that, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7)

Amy Sweeney, a flight attendant on Flight 11, gives updates over the phone to Michael Woodward, an American Airlines flight services manager at Logan International Airport in Boston, as her plane approaches the World Trade Center, and then, after she reports that the plane is flying “very, very low,” the line goes dead. (Federal Bureau of Investigation 9/13/2001, pp. 1-2; 9/11 Commission 7/24/2004, pp. 6-7) Sweeney has been on the phone with the American Airlines flight services office at Logan Airport since 8:32 a.m., describing to Woodward the trouble on her plane (see (8:32 a.m.-8:44 a.m.) September 11, 2001). (9/11 Commission 8/26/2004, pp. 11)
Sweeney Says Plane Is 'in a Rapid Descent' - She now tells Woodward: “Something is wrong. We are in a rapid descent.” She says her plane is flying “all over the place.” (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) Around this time, Woodward tells Nancy Wyatt, another employee in the flight services office, that Sweeney has “started screaming that there’s something wrong with the airplane.” He adds: “In other words… [the original pilot is] not flying the airplane. They’re not flying the airplane.” (American Airlines 9/11/2001, pp. 34-41)
Sweeney Says Plane Is Flying 'Very Low' - Woodward asks Sweeney to look out of the window to see if she can determine where her plane is. (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) In an interview with the FBI a couple of days later, Woodward will say that Sweeney tells him: “I see water. I see buildings. We’re very, very low. Oh my God.” (Federal Bureau of Investigation 9/13/2001, pp. 1-2) In 2004, he will give a slightly different account, telling the 9/11 Commission that Sweeney says: “We are flying low. We are flying very, very low. We are flying way too low.” Seconds later she says, “Oh my God, we are way too low.” (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) Sweeney says “Oh my God” after taking “a very slow, deep breath,” Woodward will tell ABC News. She says these final words “[v]ery slowly, very calmly, very quietly. It wasn’t in panic,” Woodward will say.
Call Suddenly Cut Off - Woodward then hears what he will describe as “very, very loud static on the other end” of the line. (ABC News 7/18/2002) After a short time, the line goes dead. (Federal Bureau of Investigation 9/13/2001, pp. 1-2) Woodward looks up from the phone and tells everyone else in the office that the line has died. (Federal Bureau of Investigation 9/13/2001, pp. 3-4) Wyatt is on the phone with Ray Howland, an employee at the American Airlines System Operations Control center in Fort Worth, Texas, and has been passing on to him the information that Sweeney was providing to Woodward (see 8:40 a.m.-8:48 a.m. September 11, 2001). She now informs Howland, “Okay, we just lost connection” with Sweeney. (American Airlines 9/11/2001, pp. 34-41; et al. 9/7/2011, pp. 14 pdf file)
Flight Services Office Personnel Learn of Crash at WTC - Shortly after Sweeney’s call is cut off, Woodward’s operational manager, Craig Kopetz, will enter the flight services office and say that a plane has just crashed into the WTC. Woodward will not initially connect this news with the crisis he has been dealing with. (Federal Bureau of Investigation 9/13/2001, pp. 1-2; ABC News 7/18/2002) Those in the flight services office will then go to their command center. “Approximately 15 minutes later,” according to Elizabeth Williams, one of Woodward’s colleagues, the group will realize that “Flight 11 was the same flight which crashed into the WTC.” (Federal Bureau of Investigation 9/13/2001, pp. 3-4) The call between Sweeney and Woodward lasts “approximately 12 minutes” and ends at around 8:44 a.m., according to the 9/11 Commission. (9/11 Commission 2004, pp. 4; 9/11 Commission 8/26/2004, pp. 11, 14) But according to a summary of phone calls from the hijacked flights presented at the 2006 trial of Zacarias Moussaoui, the call began at 8:32 a.m. and 39 seconds, and lasts 13 minutes and 13 seconds, meaning it ends at 8:45 a.m. and 52 seconds. (US District Court for the Eastern District of Virginia, Alexandria Division 7/31/2006) Flight 11 crashes into the WTC less than a minute later, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7)

An air traffic controller at the FAA’s Boston Center suggests that Flight 11 is going to crash into the World Trade Center. (The Learning Channel 8/20/2006) Flight 11 is heading southbound toward New York, descending at about 3,200 feet per minute. (National Transportation Safety Board 2/19/2002 pdf file) John Hartling, a controller at the Boston Center who has been monitoring it (see (8:34 a.m.) September 11, 2001), will later recall, “One of my fellow controllers on the other side of the room, I heard him say, ‘That airplane’s gonna hit the World Trade Center.’” (The Learning Channel 8/20/2006) Flight 11 will crash into the WTC at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (National Transportation Safety Board 2/19/2002 pdf file)

The hole caused by the Flight 11 crash.The hole caused by the Flight 11 crash. [Source: Reuters]Flight 11 slams into the WTC North Tower (Building 1). Hijackers Mohamed Atta Waleed Alshehri, Wail Alshehri, Abdulaziz Alomari, and Satam Al Suqami presumably are killed instantly, and many more in the tower will die over the next few hours. Seismic records pinpoint the crash at 26 seconds after 8:46 a.m. (CNN 9/12/2001; New York Times 9/12/2001; North American Aerospace Defense Command 9/18/2001; Cauchon 12/20/2001; Federal Emergency Management Agency 5/1/2002, pp. 1-10; Dwyer et al. 5/26/2002; Levin, Adams, and Morrison 8/12/2002; Associated Press 8/21/2002; Adcock 9/10/2002) The NIST report states the crash time to be 8:46:30. (National Institute of Standards and Technology 9/2005, pp. 19) The 9/11 Commission Report states the crash time to be 8:46:40. (9/11 Commission 7/24/2004, pp. 7) Investigators believe the plane still has about 10,000 gallons of fuel (see 8:57 a.m. September 11, 2001). (Dwyer et al. 5/26/2002) The plane strikes the 93rd through 99th floors in the 110-story building. No one above the crash line survives; approximately 1,360 people die. Below the crash line, approximately 72 die and more than 4,000 survive. Both towers are slightly less than half full at the time of the attack, with between 5,000 to 7,000 people in each tower. This number is lower than expected. Many office workers have not yet shown up to work, and tourists to the observation deck opening at 9:30 A.M. have yet to arrive. (Cauchon 12/20/2001; National Institute of Standards and Technology 9/2005, pp. 20-22) The impact severs some columns on the north side of the North Tower. Each tower is designed as a “tube-in-tube” structure and the steel columns which support its weight are arranged around the perimeter and in the core. The plane, which weighs 283,600 lb and is traveling at an estimated speed of around 430 mph (see October 2002-October 2005), severs 35 of the building’s 236 perimeter columns and damages another two. The damage to the South Tower’s perimeter will be similar (see 9:03 a.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 5-9, 20, 22) The perimeter columns bear about half of the tower’s weight, so this damage reduces its ability to bear gravity loads by about 7.5 percent. (National Institute of Standards and Technology 9/2005, pp. 6) The actual damage to the 47 core columns is not known, as there are no photographs or videos of it, but there will be much speculation about this after 9/11. It will be suggested that some parts of the aircraft may have damaged the core even after crashing through the exterior wall. According to the National Institute of Standards and Technology (NIST): “Moving at 500 mph, an engine broke any exterior column it hit. If the engine missed the floor slab, the majority of the engine core remained intact and had enough residual momentum to sever a core column upon direct impact.” (National Institute of Standards and Technology 9/2005, pp. 107) According to NIST’s base case computer model, three of the core columns are severed and another ten suffer some damage. (National Institute of Standards & Technology 9/2005, pp. 189 pdf file) If this is accurate, it means that the impact damage to the core reduces the Tower’s strength by another approximately 7.5 percent, meaning that the building loses about 15 percent of its strength in total. This damage will be cited after 9/11 by NIST and others researchers as an event contributing to the building’s collapse (see October 23, 2002 and October 19, 2004). In addition, some of the fireproofing on the steel columns and trusses may be dislodged. The original fireproofing on the fire floors was mostly Blazeshield DC/F, but some of the fireproofing on the flooring has recently been upgraded to Blazeshield II, which is about 20 percent denser and 20 percent more adhesive. (National Institute of Standards & Technology 9/2005, pp. xxxvi, 83 pdf file) Photographs and videos of the towers will not show the state of fireproofing inside the buildings, but NIST will estimate the damage to it using a computer model. Its severe case model (see (October 2002-October 2005)) will predict that 43 of the 47 core columns are stripped of their fireproofing on one or more floors and that fireproofing is stripped from trusses covering 60,000 ft2 of floor area, the equivalent of about one and a half floors. NIST will say that the loss of fireproofing is a major cause of the collapse (see April 5, 2005), but only performs 15 tests on fireproofing samples (see October 26, 2005). (National Institute of Standards and Technology 9/2005, pp. 23) According to NIST, more fireproofing is stripped from the South Tower (see 9:03 a.m. September 11, 2001).

John Odermatt.John Odermatt. [Source: Queens Gazette]New York City’s Office of Emergency Management (OEM) activates its Emergency Operations Center (EOC) on the 23rd floor of World Trade Center Building 7. The OEM is responsible for managing the city’s response to major incidents, including terrorist attacks. (9/11 Commission 7/24/2004, pp. 283-284, 293) Its personnel arrived at WTC 7, where it has offices, early this morning to prepare for Tripod, a major biological terrorism training exercise scheduled for September 12 (see September 12, 2001). (Jenkins and Edwards-Winslow 9/2003, pp. 15 pdf file)
Staffer Is Told to Open the Operations Center - OEM Commissioner John Odermatt and Richard Bylicki, a police sergeant assigned to the OEM, heard the explosion when Flight 11 crashed into the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). As they look out of the window at the burning North Tower, Odermatt debriefs Bylicki and instructs him to open the EOC for a fully staffed operation. Bylicki therefore sets about activating the operations center. (Bylicki 6/19/2003)
Staffers Call Agencies and Tell Them to Send Their Representatives - EOC personnel start contacting agencies, including the New York Fire and Police Departments and the Department of Health, and instruct them to send their designated representatives to the center. They also call the State Emergency Management Office (SEMO) and the Federal Emergency Management Agency (FEMA), which they ask to send at least five federal urban search and rescue teams. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 293) Meanwhile, Bylicki helps the OEM’s Watch Command handle an “enormous influx” of phone calls, many of which are from senior city officials. (Bylicki 6/19/2003)
Activation Proceeds without Any Problems - EOC personnel initially struggle to make sense of what has happened at the Twin Towers. (Wachtendorf 2004, pp. 77) However, the activation apparently proceeds without any problems. Firefighter Timothy Brown, a supervisor at the OEM, is instructed by Calvin Drayton, a deputy director with the OEM, to go up to the 23rd floor of WTC 7 and make sure that personnel are getting the EOC up and running, and the Watch Command is being properly supervised. He goes up to the 23rd floor and first checks the Watch Command. He sees that its supervisor, Mike Lee, has things under control. Then, in the EOC, he sees Michael Berkowitz, a supervisor with the OEM, powering up all the computers and television screens necessary to handle the emergency, and beginning to notify the dozens of agencies that need to send representatives to the center. Berkowitz tells Brown he has the manpower he needs to get the center up and running. “I was very comfortable that OEM was beginning to do what we do in a major emergency,” Brown will later recall. Activating the EOC is something OEM personnel have “drilled for and drilled for and drilled for… and so we were very good at it,” he will comment. (Brown 1/15/2002; Brown 6/30/2002 pdf file; Brown 1/31/2003)
Center Is Designed for Managing a Crisis - The EOC, which opened in 1999 (see June 8, 1999), is a state-of-the-art facility designed to operate as a stand-alone center from which the city government can operate during a crisis. (City of New York 2/18/2001) It is one of the most sophisticated facilities of its type in the world. It includes a communications suite, a conference room, a press briefing room, and a large number of staff offices, and has numerous computer-equipped workstations. (Kendra and Wachtendorf 3/2003 pdf file) It has enough seating for 68 agencies to operate during an emergency. (City of New York 2/18/2001) However, it will be evacuated at 9:30 a.m. due to reports of further unaccounted-for planes, according to the 9/11 Commission Report (see (9:30 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 305) Other accounts will indicate that it may be evacuated at an earlier time, possibly even before the second crash at the WTC occurs (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001 and (Shortly Before 9:03 a.m.) September 11, 2001).

Bush’s travels in the Sarasota, Florida, region, with key locations marked.Bush’s travels in the Sarasota, Florida, region, with key locations marked. [Source: Yvonne Vermillion/ MagicGraphix.com]White House officials and reporters who are traveling with President Bush in Florida learn that a plane has crashed into the World Trade Center while they are being driven to the Emma E. Booker Elementary School in Sarasota, but Bush is not notified about the crash at this time. (Bartlett 8/12/2002; Martin 7/4/2004; Keil 9/2004) A number of senior officials who are together in a van learn about the crash as their vehicle is pulling into the school’s driveway. Those in the van include White House press secretary Ari Fleischer; White House communications director Dan Bartlett; Bush’s senior adviser, Karl Rove; Bush’s CIA briefer, Mike Morell; and White House photographer Eric Draper. (Bartlett 8/12/2002; Fleischer 2005, pp. 138; Morell 9/2006 pdf file)
Press Secretary Is Contacted by an Assistant - Fleischer is alerted to the crash by Brian Bravo, an assistant in the White House press office. Bravo learned what happened when he was called by a friend in New York who had seen Flight 11 hitting the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and then saw the television coverage of the incident. In response, he sent a pager message to Fleischer, simply stating, “A plane has hit the World Trade Center.” (Fleischer 8/8/2002; Fleischer 2005, pp. 138; Graff 9/9/2016) After seeing the message, Fleischer exclaims: “Oh, my God! I don’t believe it! A plane just hit the World Trade Center.” (Krueger 9/10/2002; Bamford 2004, pp. 17) He turns to Morell and asks the CIA officer if he knows anything about the incident. Morell says no and that he will make some calls to try and find out more. He will call the CIA’s operations center to see what people there know (see Shortly Before 9:00 a.m. September 11, 2001). (Morell 9/2006 pdf file; Morell and Harlow 2015, pp. 47-48)
Other Officials Receive Calls from the White House - Around the time Fleischer is alerted to the crash, Rove is called from the White House by his assistant, Susan Ralston, who tells him what happened at the WTC (see (8:55 a.m.) September 11, 2001). (Lemann 9/25/2001; Regencia 2/2004) And Bartlett receives a call from his assistant at the White House, who tells him: “There’s just been an incredible accident or something. A plane has hit the World Trade Center.” (Bartlett 8/12/2002)
Military Officers Are Called about the Crash - In another vehicle in the motorcade, Navy Captain Deborah Loewer, the director of the White House Situation Room, receives a call from Rob Hargis, the senior duty officer in the Situation Room, alerting her to the crash. (Lance 8/17/2003; Bohn 8/29/2011; Priess 2016, pp. 239-240) Meanwhile, as his vehicle is arriving at the school, Lieutenant Colonel Thomas Herman, a senior presidential communications officer assigned to the White House, is contacted by his operations center, and notified that a plane has struck one of the Twin Towers and National Security Adviser Condoleezza Rice wants to talk on the phone with the president. (Bates 10/2002)
Members of the Press Are Alerted to the Crash - Members of the press traveling in the motorcade also learn about the crash during the journey to the school. Reporter Richard Keil is told what happened when he talks on the phone with a friend who has seen the coverage of the incident on television. Keil then passes on the news to the other reporters and photographers in the press van. And Kia Baskerville, a CBS News White House producer, receives a call on her cell phone from a producer who tells her about the crash. (Cosgrove-Mather 8/19/2002; Keil 9/2004)
President Is Not Told about the Crash - And yet, while these people are alerted to the crash, Bush reportedly is not called about it at this time and he will only be told what has happened after he arrives at the school (see (8:55 a.m.) September 11, 2001 and (Shortly After 8:55 a.m.) September 11, 2001). (Martin 7/4/2004; Rove 2010, pp. 249-250; Priess 2016, pp. 240) This is despite the fact that his limousine is “bristling with communications gear,” according to the Los Angeles Times. (Jones 1/24/2001) “In the presidential limo, the communications system is almost duplicative of the White House,” author Philip Melanson will note. (Martin 7/4/2004) “Yet despite having a secure STU-III phone next to him… and an entire national security staff at the White House,” author James Bamford will comment, “it appears that the president of the United States knew less than tens of millions of other people in every part of the country who were watching the attack as it unfolded.” (Bamford 2004, pp. 17) “It mystifies me why they didn’t call the president,” Robert Plunket, a reporter who is waiting for the president at the school, will remark. “He’s totally surrounded by state-of-the-art communications equipment and nobody tells him.” (Martin 7/4/2004)

Alan DeVona.Alan DeVona. [Source: Atlas Shrugs]An officer with the Port Authority Police Department (PAPD) calls for the evacuation of the upper floors of the North Tower of the World Trade Center over a PAPD radio channel. Transcripts of PAPD radio transmissions will show that at 8:49 a.m., three minutes after Flight 11 crashed into the North Tower (see 8:46 a.m. September 11, 2001), the PAPD officer talks to the PAPD desk, which is in Building 5 of the WTC, just northeast of the North Tower. He says: “Start doing the evac, the upper levels. Have the units put on the Scott air packs.” The officer at the PAPD desk then radios all PAPD units and tells them to “bring Scott air packs [to] One World Trade,” i.e. the North Tower. (Port Authority of New York and New Jersey 9/11/2001, pp. 2 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; National Institute of Standards and Technology 9/2005, pp. 195)
Patrol Sergeant Recalls Requesting Evacuation - It is unclear which PAPD officer requests the evacuation at this time. According to some accounts, Alan DeVona, the PAPD patrol sergeant at the WTC, makes the request. (Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; Dwyer and Flynn 2005, pp. 78) DeVona will later recall that he had just walked out from the PAPD desk in WTC 5 when he heard the explosion as Flight 11 hit the North Tower. Along with his colleague, Anthony Basic, he radioed the PAPD desk and reported that the top floors of the North Tower were on fire, due to a “possible aircraft collision.” He headed into the North Tower to coordinate with emergency agencies as they arrived there. DeVona will recall that he then “radios to have all WTC police units get Scott air packs and begin evacuation of [the North Tower].” He will subsequently be “approached by numerous PAPD units as they entered the lobby” of the North Tower, and he “dispatches them through the concourse to evacuate the complex.” (Devona 3/28/2002, pp. 24 pdf file)
Police Commander Recalls Requesting Evacuation - However, Captain Anthony Whitaker, the PAPD commanding officer at the WTC, will also say that he calls for the evacuation of the WTC around this time. Whitaker was on duty in the shopping mall beneath the Twin Towers when Flight 11 hit the North Tower. (Dwyer and Flynn 2005, pp. 78) He heard a “strange roar” and saw a “gigantic fireball” coming out of the lobby of the North Tower. He then contacts the PAPD desk in WTC 5. Whitaker will recall, “I had no idea what had just happened, but I knew it was bad.” Therefore, he will say, “I ordered the cop at the desk to begin a full-scale evacuation of the entire complex.” This will mean the evacuation of “both towers and the adjoining buildings.” Whitaker contacts one of his sergeants and then, he will recall, “we started placing Port Authority cops in strategic locations in the shopping mall to direct the evacuation.” Whitaker will say that after 9/11, he is repeatedly asked, “Why did you give that order to evacuate at that particular time?” following the first crash, but before the second plane hit the WTC. His explanation will be: “It just occurred to me that whatever was going on—and I still didn’t know what that was—was beyond my ability as a commanding officer of that facility to do anything about it. So it seemed to me that the only prudent thing to do was start a full-scale evacuation and get everybody out of there.” (Fink and Mathias 2002, pp. 23-24; Murphy 2002, pp. 179-181)
Evacuation Orders Cannot Be Heard by Fire Safety Directors - At 9:00 a.m., Whitaker will call for an evacuation of the entire WTC complex (see 8:59 a.m.-9:02 a.m. September 11, 2001). However, both that instruction and the current one are given over PAPD radio channel W, which cannot be heard by the deputy fire safety directors in the Twin Towers, who are able to make announcements to the buildings’ occupants over the public address systems. (WTC News 8/1995 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 195, 201) An announcement advising workers to evacuate will only go out over the public address system in the South Tower at 9:02 a.m. (see 9:02 a.m. September 11, 2001). And attempts to order workers to evacuate the North Tower are unsuccessful because that building’s public address system was damaged by the plane crash (see (Between 8:47 a.m. and 8:55 a.m.) September 11, 2001). (Prendergast 5/18/2004)
PAPD Investigates All Reports of Fires at WTC - The WTC is a Port Authority property, which means it is patrolled by the PAPD—the Port Authority’s independent police agency. Members of the PAPD respond to “thefts, injuries, fires, all species of crisis large and small, almost always more quickly than the city emergency responders could get there,” according to New York Times reporters Jim Dwyer and Kevin Flynn. “By plan,” Dwyer and Flynn will write, “the PAPD checked out every report of fire” and “its officers were trained in at least rudimentary firefighting.” (Dwyer and Flynn 2005, pp. 78)

An announcement goes out over the public address system in the South Tower of the World Trade Center, telling workers that an incident has occurred in the other WTC tower and their building is safe, and advising them to stay in—or return to—their offices, rather than evacuate. (Moore and Cauchon 9/2/2002; 9/11 Commission 7/24/2004, pp. 287-288) After Flight 11 hit the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001), many people in the South Tower were unaware of what had happened. “Some believed an incident had occurred in their building; others were aware that a major explosion had occurred on the upper floors of the North Tower,” the 9/11 Commission Report will state. As a result, many workers decided to leave the South Tower. (9/11 Commission 7/24/2004, pp. 287) As they do so, an announcement is made over the public address system.
Announcement Says South Tower Is Secure - Brian Clark, an executive with Euro Brokers who also serves as a fire warden and is on the 84th floor of the South Tower, will later describe this announcement. “First, the strobe lights flashed, as they did during their normal fire drills,” he will say. “The alarm system gave a little bit of a whoop, whoop… to alert you to an announcement about to be made. Then the very familiar voice, the one we heard all the time, came over the system.” Clark will recall that the voice says: “Your attention, please, ladies and gentlemen. Building 2 [i.e. the South Tower] is secure. There is no need to evacuate Building 2. If you are in the midst of evacuation, you may use the re-entry doors and the elevators to return to your office. Repeat, Building 2 is secure.” (Clark 4/30/2002; Dwyer and Flynn 2005, pp. 72) The announcement is made two or possibly three times, according to USA Today. (Moore and Cauchon 9/2/2002) Florence Engoran, a credit analyst working in the South Tower, will recall it being made “[o]ver and over and over again.” (DiMarco 2007, pp. 50)
Announcement May Lead to Hundreds of Deaths - Many people in the South Tower remain on their floors after hearing the announcement, while others who were leaving the building turn around and head back upstairs. (9/11 Commission 7/24/2004, pp. 289) USA Today will suggest that the announcement therefore “may have led to the deaths of hundreds of people.” (Moore and Cauchon 9/2/2002) According to the National Institute of Standards and Technology, of those who die in the South Tower, only 11 are below where the plane hits the tower at 9:03 a.m. (see 9:03 a.m. September 11, 2001), and 619 are in or above the point of impact. (National Institute of Standards and Technology 9/2005, pp. 44)
Announcement Goes against Protocol - The announcement is later believed to have been made by Philip Hayes, a deputy fire safety director at the WTC, who is manning the fire command desk in the lobby of the South Tower. Fire safety directors are trained to read scripted announcements from a loose-leaf binder. But, according to the 9/11 Commission Report, the advice given in the announcement, for people to stay in, or return to, their offices, “did not correspond to any existing written protocol.”
Security Manager Decided to Instruct Workers Not to Evacuate - The 9/11 Commission Report will also state, “We do not know the reason for the announcement, as both [Hayes] and the director of fire safety for the WTC complex perished in the South Tower’s collapse.” (Moore and Cauchon 9/2/2002; 9/11 Commission 7/24/2004, pp. 288; Dwyer and Flynn 2005, pp. 26, 72) However, George Tabeek, a security manager with the Port Authority of New York and New Jersey, will admit having made the decision to instruct South Tower workers to return to their offices (see Shortly After 8:46 a.m. September 11, 2001). (Walmsley 9/10/2011) Some security officials in the South Tower instruct workers, in person, to return upstairs, rather than evacuate (see (8:47 a.m.-9:02 a.m.) September 11, 2001). But finally, about a minute before Flight 175 hits the South Tower, an instruction will be broadcast over the public address system informing workers that they can begin an evacuation if conditions warrant it (see 9:02 a.m. September 11, 2001). (Vulliamy 9/16/2001; 9/11 Commission 7/24/2004, pp. 289)

A typical F-15.A typical F-15. [Source: US Air Force]Radar data will show that the two F-15s scrambled from Otis Air National Guard Base in Cape Cod, Massachusetts, are airborne by this time. (Graham 9/15/2001; North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 20) It is now eight minutes since the mission crew commander at NORAD’s Northeast Air Defense Sector (NEADS) ordered that the jets be launched (see 8:45 a.m. September 11, 2001). (Bronner 8/1/2006) It is 40 minutes since air traffic controllers had their last communication with Flight 11 (see 8:13 a.m. September 11, 2001), and 28 minutes since they became certain that the aircraft was hijacked (see (8:25 a.m.) September 11, 2001). Flight 11 crashed into the World Trade Center seven minutes ago (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7, 19 and 459)
Commander Wants Fighters Sent to New York - In Rome, New York, NEADS has just received news of the plane hitting the WTC (see 8:51 a.m. September 11, 2001). Major Kevin Nasypany, the facility’s mission crew commander, is asked what to do with the Otis fighters. He responds: “Send ‘em to New York City still. Continue! Go! This is what I got. Possible news that a 737 just hit the World Trade Center. This is a real-world.… Continue taking the fighters down to the New York City area, JFK [International Airport] area, if you can. Make sure that the FAA clears it—your route all the way through.… Let’s press with this.” (Bronner 8/1/2006) Yet there will be conflicting reports of the fighters’ destination (see (8:53 a.m.-9:05 a.m.) September 11, 2001), with some accounts saying they are directed toward military-controlled airspace off the Long Island coast. (Filson 2003, pp. 56-59; 9/11 Commission 6/17/2004)

An air traffic controller at the FAA’s Boston Center directs the two fighter jets that took off from Otis Air National Guard Base in response to the hijacked Flight 11 toward a new heading, based on instructions he has just received from NORAD’s Northeast Air Defense Sector (NEADS).
NEADS Gave New Heading for Fighters - The Boston Center controller, who is working at the Cape Sector radar position, has just been contacted by someone from NEADS. The caller from NEADS, referring to the two fighters from Otis Air Base, said, “The heading that we gave him on, I guess, is a bad heading.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) (The original flight strip for the fighters gave a destination of New York’s JFK International Airport. (9/11 Commission 9/22/2003 pdf file) ) The caller said the fighters’ target was “now south of JFK,” and added, “Can you direct the Panta flight [i.e. the two Otis fighters] towards that now?” The controller replied: “If I’m talking to him, I don’t know where that target [is]. I don’t even see the target at all.” (Federal Aviation Administration 9/11/2001) The “target,” Flight 11, crashed into the World Trade Center at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7) However, the caller explained that NEADS had just talked to Colin Scoggins, the military liaison at the Boston Center, and Scoggins said the target was “south of JFK now.” The caller therefore reiterated, “We want to get [the Otis fighters] headed in that direction.” The controller confirmed, “I’ll do that.”
Controller Passes on New Heading to Pilot - Seconds later, Lieutenant Colonel Timothy Duffy, one of the pilots of the two fighters out of Otis Air Base, checks in with the Boston Center controller. Duffy says, “Boston Center, Panta 45 with you out of 13-5 for 290.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) (“Panta 45” is Duffy’s call sign. (Spencer 2008, pp. 113) ) The controller tells Duffy, “Panta 45, roger, fly heading of 260.” Duffy confirms the new heading. The controller then instructs, “Maintain block 290.” Duffy confirms, “Six zero on the heading, climbing to flight level [of] 290.” The controller will then tell Duffy that Flight 11 has crashed into the WTC (see 8:55 a.m. September 11, 2001). (Federal Aviation Administration 9/11/2001)

One of the two fighter pilots who took off in response to the hijacked Flight 11 is told by air traffic control that Flight 11 has crashed into the World Trade Center, and yet both pilots will later claim they are unaware of this crash until after 9:03 a.m., when Flight 175 hits the WTC. (Federal Aviation Administration 9/11/2001; Dennehy 8/21/2002; ABC News 9/11/2002; Nash 10/2/2002; Duffy 10/22/2002; 9/11 Commission 2004) Lieutenant Colonel Timothy Duffy and Major Daniel Nash took off in their F-15s from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), but were unaware that at the same time, Flight 11 was crashing into the WTC (see 8:46 a.m. September 11, 2001). (Filson 2003, pp. 57; 9/11 Commission 7/24/2004, pp. 20)
Controller Tells Pilot that Flight 11 Crashed into WTC - Duffy has just checked in with the air traffic controller at the FAA’s Boston Center who is working at the Cape Sector radar position, and the controller has given him a new heading to fly toward (see 8:54 a.m.-8:55 a.m. September 11, 2001). The controller now asks Duffy, “I understand you’re going out to look for American 11, is that correct?” Duffy replies, “Affirmative.” The controller then tells Duffy that Flight 11 has crashed. He says, “Okay, I just got information that the aircraft has been, uh, crashed into the World Trade Center, so I’m not quite sure what your intentions are, if you’re still going to head that way or you may want to talk to your operations.” Duffy responds, “Okay, we’re going to go over and talk to Huntress right now.” (“Huntress” is the call sign for NORAD’s Northeast Air Defense Sector, NEADS.) (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) Although Duffy contacts NEADS (see (8:56 a.m.-8:57 a.m.) September 11, 2001), it is unclear whether he talks about the crash, as he indicates he is going to, since, according to the 9/11 Commission Report, “there are no NEADS recordings available of the NEADS senior weapons director and weapons director technician position responsible for controlling the Otis [Air National Guard Base] scramble” (see (8:30 a.m.-3:00 p.m.) September 11, 2001). (9/11 Commission 1/7/2004 pdf file; 9/11 Commission 7/24/2004, pp. 459) It is also unclear whether Duffy passes on the information about Flight 11 hitting the WTC to Nash. But in later interviews, both pilots will claim they were unaware of Flight 11 hitting the WTC until they were informed that a second aircraft had hit the WTC, shortly after that second crash occurred (see (9:03 a.m.) September 11, 2001 and 9:06 a.m.-9:07 a.m. September 11, 2001). (9/11 Commission 2004; Spencer 2008, pp. 84)
Pilots Deny Learning of First Crash - The Cape Cod Times will report that Nash “doesn’t even recall hearing that the first plane hit.” (Dennehy 8/21/2002) Nash will tell author Leslie Filson that when he and Duffy are informed of the second plane hitting the WTC, they are “still under [the] impression [that] American 11 was still airborne” and are “shocked, because we didn’t know the first one had even hit.” (Nash 10/2/2002) And Nash will tell the 9/11 Commission that he “does not remember at which point during the morning of 9/11 he heard of the first crash at the WTC.” He will say he does “remember that the FAA controller he communicated with during flight told him of the second crash,” but add that “this was strange to hear at the time, since he had not been told of the first.” (9/11 Commission 10/14/2003 pdf file) Duffy will tell ABC News that when he is informed of the second crash, “I thought we were still chasing American 11.” (ABC News 9/11/2002) He will tell Filson that when he learns of this second crash, “I didn’t know [the] first one hit” the WTC. (Duffy 10/22/2002) And he will tell the 9/11 Commission that when he “received word that a second aircraft had hit the WTC,” he “still thought they were responding to a hijacked American [Airlines] airliner.” (9/11 Commission 1/7/2004 pdf file)

Lieutenant Colonel Timothy Duffy, one of the two fighter pilots who took off in response to the hijacked Flight 11, contacts NORAD’s Northeast Air Defense Sector (NEADS) to request information on his target, but apparently neither Duffy nor the person he speaks with at NEADS mention that Flight 11 has already hit the World Trade Center during the call, even though both men should already be aware of the crash. (Federal Aviation Administration 9/11/2001; Duffy 10/22/2002; Filson 2003, pp. 60; 9/11 Commission 1/7/2004 pdf file) Duffy and another pilot, Major Daniel Nash, took off from Otis Air National Guard Base at 8:46 a.m. (see 8:46 a.m. September 11, 2001), but they were unaware that at the same time, Flight 11 was crashing into the WTC (see 8:46 a.m. September 11, 2001). (Filson 2003, pp. 57; 9/11 Commission 7/24/2004, pp. 20) Duffy has just spoken to an air traffic controller at the FAA’s Boston Center (see 8:54 a.m.-8:55 a.m. September 11, 2001) and ended the call saying he would talk to NEADS “right now.” (Federal Aviation Administration 9/11/2001) Duffy will later recall that he contacts NEADS at about 8:56 a.m. or 8:57 a.m. (9/11 Commission 1/7/2004 pdf file)
Duffy Told His Target Is over JFK Airport - Duffy presumably talks with Steve Hedrick at NEADS, since Hedrick is responsible for controlling the two Otis fighters. (9/11 Commission 10/27/2003 pdf file) As soon as he has checked in with NEADS, Duffy will recall, “I authenticate to make sure I’ve got the right person.” He then asks for “bogey dope,” meaning information on his target—Flight 11—“to try to find out where the contact is.” (Duffy 10/22/2002; Filson 2003, pp. 60) Duffy is told, incorrectly, that his target is over New York’s JFK International Airport. Duffy replies, “Okay, I know where that is,” and then, he will recall, “we started heading right down to Long Island.” (Scott 6/3/2002; ABC News 9/11/2002)
WTC Crash Apparently Not Discussed - However, it appears that neither Duffy nor the person he speaks with at NEADS mention the plane crash at the WTC during their conversation. Duffy will say that when he is subsequently informed that a second plane has hit the WTC (see (9:03 a.m.) September 11, 2001 and 9:06 a.m.-9:07 a.m. September 11, 2001), he is unaware that Flight 11 has already hit the WTC. (ABC News 9/11/2002; Duffy 10/22/2002; 9/11 Commission 1/7/2004 pdf file) And yet Duffy and personnel at NEADS have already been informed of that first crash.
Pilot and NEADS Previously Notified of Crash - Duffy has just been told of the crash during his conversation with the Boston Center controller (see 8:55 a.m. September 11, 2001). (Federal Aviation Administration 9/11/2001) NEADS personnel learned of it at 8:51 a.m. (see 8:51 a.m. September 11, 2001), although there is now some confusion on the NEADS operations floor over whether the plane that crashed was indeed Flight 11 (see 8:55 a.m.-8:57 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 20; Bronner 8/1/2006) It will later be impossible to ascertain exactly what is said in the current conversation between Duffy and NEADS. Although tape recorders should be recording every radio channel at NEADS, because of a “technical issue,” the positions of Hedrick and his weapons director technician, Bradley Gardner, are supposedly not recorded (see (8:30 a.m.-3:00 p.m.) September 11, 2001). (9/11 Commission 5/25/2004; 9/11 Commission 7/24/2004, pp. 459; Bronner 8/1/2006)
Duffy Searches for Flight 11 on Radar Scope - Duffy will recall that following the call with NEADS, he is looking at his radar scope “to try and find a radar contact over the Kennedy sector with the hijacked aircraft.” Duffy will again contact NEADS to request “bogey dope” a few minutes later, and during that call is informed of the second plane hitting the WTC. (Filson 2003, pp. 60; 9/11 Commission 1/7/2004 pdf file)

The jet fuel that spilled from Flight 11 when it hit the North Tower (see 8:46 a.m. September 11, 2001) has mostly burned up by this time. The National Institute of Standards and Technology (NIST), which investigates the collapses, will say “The initial jet fuel fires themselves lasted at most a few minutes.” (National Institute of Standards and Technology 9/2005, pp. 183) Engineering professor Forman Williams will say the jet fuel “burned for maybe 10 minutes.” (Chertoff et al. 3/2005) Flight 11, a Boeing 767, had a fuel capacity of 23,980 gallons, but was only carrying about 10,000 gallons when it hit the WTC. NIST will estimate that less than 1,500 gallons were consumed in a fireball inside the tower and a comparable amount was consumed in the fireballs outside the building. Therefore, approximately 7,000 gallons splashed onto the office furnishings and started fires on various floors. However, after the jet fuel is used up, office fires burn until the building collapses. NIST will calculate that there were about four pounds per square foot of combustibles in the office space, or about 60 tons per floor. Offices in the WTC actually have fewer combustibles than some other similar spaces due to the small number of interior walls and limited bookshelf space. NIST will later find that only three of sixteen perimeter columns it recovers reached a temperature of 250°C and neither of the two core columns it retrieves reached this temperature. NIST will also find that none of the samples it acquires reaches a temperature above 600°C (see August 27, 2003). Although steel does not melt until its temperature is about 1,600°C, it may begin to lose significant strength at over 500°C. (National Institute of Standards and Technology 9/2005, pp. 20, 29, 24, 77) The jet fuel will also burn up in the South Tower about 10 minutes after it is hit (see 9:13 a.m. September 11, 2001).

A special radio transmitter that is carried by aircraft and designed to go off automatically if a plane crashes is activated in the New York area, several minutes before Flight 175 hits the World Trade Center. David Bottiglia, an air traffic controller at the FAA’s New York Center, receives information from one of the aircraft he is monitoring. A few seconds before 8:59 a.m., the pilot of US Airways Flight 583 tells him, “I hate to keep burdening you with this stuff, but now we’re picking up another ELT on 21.5.” (Federal Aviation Administration 9/11/2001, pp. 37 pdf file; 9/11 Commission 10/1/2003 pdf file; 9/11 Commission 2004) An “ELT” is an emergency locator transmitter, a device carried on most general aviation aircraft in the US that is designed to automatically begin transmitting a distress signal if a plane should crash, so as to help search and rescue attempts at locating the downed aircraft. (Federal Aviation Administration 3/23/1990; US Department of the Army 8/12/2008, pp. E-6 pdf file; Aircraft Owners and Pilots Association 1/22/2009) “21.5” refers to the emergency frequency of 121.5 megahertz that ELTs transmit their distress signals on. (Aircraft Electronics Association 2009, pp. 36 pdf file) While the pilot’s information would mean an ELT is activated at around 8:58 a.m., Flight 175 will crash into the WTC several minutes later, at 9:03 a.m. and 11 seconds (see 9:03 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 8) And yet there are no reports of an ELT going off at the time of the crash itself. The pilot of Flight 583 earlier on informed Bottiglia of another ELT signal, which had been transmitted shortly before Flight 11 hit the WTC (see 8:44 a.m. September 11, 2001). (New York Times 10/16/2001; 9/11 Commission 10/1/2003 pdf file)

Anthony Whitaker.Anthony Whitaker. [Source: ABC News]Sergeant Alan DeVona, an officer with the Port Authority Police Department (PAPD), calls for the evacuation of the Twin Towers over a PAPD radio channel, and his colleague, Captain Anthony Whitaker, then calls for the evacuation of the entire World Trade Center complex, but their orders are apparently not passed on (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; 9/11 Commission 5/18/2004 pdf file; Dwyer and Flynn 2005, pp. 78-79; National Institute of Standards and Technology 9/2005, pp. 200-202) DeVona, the PAPD patrol sergeant at the WTC, is currently in the lobby of the North Tower, coordinating with emergency agencies as they arrive there. (Devona 3/28/2002, pp. 24 pdf file) Whitaker, the PAPD commanding officer at the WTC, is outside the Twin Towers, looking up at the burning North Tower. (Fink and Mathias 2002, pp. 25; Murphy 2002, pp. 184)
Officers Request Evacuation of the WTC - At 8:59 a.m., DeVona calls for the evacuation of the Twin Towers. “As soon as we’re able,” he says over the PAPD radio channel, “I want to start a building evacuation, Building 1 [i.e. the North Tower] and Building 2 [i.e. the South Tower], till we find out what caused this.” Immediately after DeVona says this, at 9:00 a.m., Whitaker makes a similar request over the same radio channel. “Let’s begin an evacuation of the entire complex,” he says. “All buildings, copy?” (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 200-201) Unlike DeVona, Whitaker is ordering the evacuation of not just the Twin Towers, “but also the five other buildings throughout the 16-acre complex—the mercantile exchange, offices of major investment banking concerns, and government agencies, including the FBI, the Secret Service, and the CIA,” according to New York Times reporters Jim Dwyer and Kevin Flynn. (Dwyer and Flynn 2005, pp. 79) Whitaker has decided to evacuate the WTC complex “because of the danger posed by highly flammable jet fuel from Flight 11,” which crashed into the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and “because of the magnitude of the calamity in the North Tower,” according to the 9/11 Commission. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 293)
Request Is the Second Time Evacuation Is Called For - Whitaker will later say that his current request is the “second time” he has called for the evacuation of the WTC complex. He will recall making his previous request—for “a full-scale evacuation of the entire complex”—shortly after Flight 11 crashed. (Fink and Mathias 2002, pp. 23-25; Murphy 2002, pp. 180-181, 184-185) Transcripts of PAPD radio transmissions will show that an evacuation was requested at 8:49 a.m., but only for the upper floors of the North Tower (see 8:49 a.m. September 11, 2001). (Port Authority of New York and New Jersey 9/11/2001 pdf file; National Institute of Standards and Technology 9/2005, pp. 195) And according to some accounts, that request was made by DeVona, not Whitaker. (Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; Devona 3/28/2002, pp. 24 pdf file; Dwyer and Flynn 2005, pp. 78)
Officer Repeats Order, for the Written Record - At 9:01 a.m., an officer at the PAPD desk in Building 5 of the WTC asks if they should evacuate their building. DeVona instructs the officer to wait, saying, “Stand by on Building 5.” Whitaker then asks the officer at the PAPD desk if they have started a “chrono log” yet. (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 201) A “chrono” is a written record of what the PAPD is doing. (Murphy 2002, pp. 182) The officer replies, “That’s affirmative.” At 9:02 a.m., Whitaker repeats his previous instruction, apparently to make sure it is officially recorded. He says: “For the chrono, evacuate all buildings in the complex. You copy? All building in the complex.” The officer at the PAPD desk acknowledges the instruction and then radios all PAPD units in the field, and tells them to evacuate “all tenants in the buildings… at the Trade Center.” (Port Authority of New York and New Jersey 9/11/2001 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 202)
Orders Not Passed on to Other Agencies - It is unclear whether DeVona and Whitaker’s orders to evacuate the WTC are passed on. Their orders are given over PAPD radio channel W, which cannot be heard by the deputy fire safety directors in the Twin Towers, who are able to make announcements over the buildings’ public address systems. (WTC News 8/1995 pdf file; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 200-202) According to the 9/11 Commission, there is “no evidence” that the orders are “communicated to officers in other Port Authority Police commands or to members of other responding agencies.” (9/11 Commission 5/18/2004 pdf file) Despite this, an announcement is made over the public address system in the South Tower, advising workers to evacuate, at 9:02 a.m. (see 9:02 a.m. September 11, 2001). Attempts to order workers to evacuate the North Tower are unsuccessful because that building’s public address system was damaged by the plane crash (see (Between 8:47 a.m. and 8:55 a.m.) September 11, 2001). (Prendergast 5/18/2004)

Matt Swanson.Matt Swanson. [Source: Iowa State University]The Air Force’s Crisis Action Team (CAT) at the Pentagon is activated and will go on to play a key role in the Air Force’s response to the terrorist attacks. (Brown 9/19/2001; Prospectus 9/2006, pp. 3-6 pdf file) The CAT, which is under the command of the Air Force chief of staff, is a “disaster response group,” which, according to the Dover Post, “coordinates Air Force reaction to anything that might be a threat to the United States.” (Brown 9/19/2001; Federal Aviation Administration 9/11/2011) It carries out its activities in the Air Force Operations Center, in the basement of the Pentagon’s C Ring. (Yackel 12/2001; Sharp 9/11/2003) Its usual first in charge is away today and so Lieutenant Colonel Matt Swanson, its second in command, has to take their place supervising emergency operations for the Air Force. (Prospectus 9/2006, pp. 3-6 pdf file)
Crisis Team Becomes 'Eyes and Ears' of the Air Force - Prior to the Pentagon being hit at 9:37 a.m. (see 9:37 a.m. September 11, 2001), according to the Defense Department’s book about the Pentagon attack, “Members of the Air Force Crisis Action Team [have] already begun to assemble [in the Operations Center] for a 10:00 a.m. briefing.” This is because “one of their responsibilities [is] to work with the Army to provide assistance to civil authorities in New York.” (Goldberg et al. 2007, pp. 136) Major Donna Nicholas arrives in the Operations Center to assist the CAT at some time after 9:03 a.m., when the second hijacked plane crashes into the World Trade Center (see 9:03 a.m. September 11, 2001). When she gets there, someone tells her, “Just so you know, we’re considering that we’re under attack.” After arriving at her station and pulling out emergency checklists, she will later recall, Nicholas finds the area around her is “a flurry of activity as Air Force officials worked to gather information, both from the media and from their own intelligence sources.” (Brown 9/19/2001) The CAT becomes “the eyes and ears of the Air Force” as it responds to the terrorist attacks, according to Major Harry Brosofsky, who will go to the Operations Center to assist the CAT after the Pentagon is attacked. (Yackel 12/2001)
Air Force Leaders Only Join Crisis Team after Pentagon Attack - It is unclear when exactly the CAT is activated. Nicholas is told it has been activated at “about 9 a.m.,” according to the Dover Post. (Brown 9/19/2001) Tim Green, assistant executive to the Air Force chief of staff, will say that after senior Air Force officials who are together in a staff meeting (see (9:00 a.m.-9:20 a.m.) September 11, 2001) see the second crash at the WTC at 9:03 a.m., they “set up a Crisis Action Team down in our Operations Center and they began working immediately.” (Condon 4/2/2002) However, senior officials such as General John Jumper, the Air Force chief of staff, and James Roche, the secretary of the Air Force, will only head to the Operations Center to assist the response from there after 9:37 a.m., when the Pentagon is hit (see Shortly After 9:37 a.m. September 11, 2001). (Sharp 9/11/2003; Hebert 9/2011 pdf file) Swanson—the man in charge of the CAT today—will say he receives a phone call in his office at the Pentagon at some time after the second WTC tower is hit, in which he is told he has to go and join the CAT. However, he will apparently only reach the Operations Center to do so after the Pentagon is attacked: He will say that when he arrives, he is greeted by Jumper and Roche, and these two men only get there after the Pentagon is hit (see After 9:37 a.m. September 11, 2001). (Prospectus 9/2006, pp. 3-6 pdf file)

An announcement is made over the public address system in the South Tower of the World Trade Center, advising workers that they can begin an orderly evacuation of the building if conditions warrant it. (Dwyer 5/17/2004; 9/11 Commission 7/24/2004, pp. 289) A previous announcement over the public address system instructed people in the South Tower to stay in, or return to, their offices, rather than evacuate (see (8:50 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 287-288; Dwyer and Flynn 2005, pp. 72) The new announcement begins: “May I have your attention, please. Repeating this message: the situation occurred in Building 1 [i.e. the North Tower].” The announcer then says, “If the conditions warrant on your floor, you may wish to start an orderly evacuation.” (Dwyer 5/17/2004) The announcement is presumably made by Philip Hayes, the deputy fire safety director on duty at the fire command desk in the lobby of the South Tower. A button at the desk enables fire safety directors to deliver announcements over the public address system. (Dwyer and Flynn 2005, pp. 26)
Identity of Person Who Ordered Evacuation Unclear - The new advice, for tenants to evacuate, does “not correspond to any prewritten emergency instruction,” according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 289) It is unclear who told Hayes to make the announcement giving this advice. George Tabeek, the Port Authority’s security manager for the WTC, contacted the fire command desks in the Twin Towers immediately after Flight 11 hit the North Tower, with instructions about what to do. His orders for Hayes, however, were to “keep people inside the South Tower” (see Shortly After 8:46 a.m. September 11, 2001). (Grant 9/6/2011)
Police Commander Called for Evacuation of WTC - Captain Anthony Whitaker, the Port Authority Police Department (PAPD) commanding officer at the WTC, called for the evacuation of the WTC at 9:00 a.m. (see 8:59 a.m.-9:02 a.m. September 11, 2001). However, his instruction was given over PAPD radio channel W, “which could not be heard by the deputy fire safety director in the South Tower,” according to the 9/11 Commission Report. (Murphy 2002, pp. 184-185; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 201) Furthermore, according to the Port Authority, deputy fire safety directors do not generally take direct orders from the PAPD under the regular chain of command. Therefore, the 9/11 Commission Report will state, it is “not known if [Hayes] received the order by the PAPD to evacuate the complex.” (9/11 Commission 7/24/2004, pp. 544)
Fire Department Responsible for Ordering Evacuations - According to New York Times reporters Jim Dwyer and Kevin Flynn, “The authority to order an evacuation during a fire normally rests with the fire department.” (Dwyer and Flynn 2005, pp. 79) In a phone call with his counterpart in the North Tower, at 8:49 a.m., Hayes in fact said he would wait to hear from “the boss from the fire department or somebody” before ordering an evacuation of the South Tower (see 8:49 a.m. September 11, 2001). (Port Authority of New York and New Jersey 9/11/2001 pdf file; 9/11 Commission 7/24/2004, pp. 287; Dwyer and Flynn 2005, pp. 27) But whether someone from the fire department told Hayes to order an evacuation is unknown. It is also unclear how long announcements, advising an evacuation, continue for. Hayes and his counterpart in the North Tower are “making announcements that the situation was serious and that occupants should evacuate immediately” for “[a]s long as the [fire alarm system] was still operational,” according to Fire Engineering magazine. (Murphy 11/1/2002) However, the 9/11 Commission Report will state, “Evidence suggests that the public address system [in the South Tower] did not continue to function after the building was hit.” This would mean no announcements go out after 9:03 a.m., when Flight 175 hits the tower (see 9:03 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 295) By the time the South Tower collapses (see 9:59 a.m. September 11, 2001), out of around 8,540 people who were originally in the building, 7,940 (93 percent) have made it out and will survive, according to the National Institute of Standards and Technology. (National Institute of Standards and Technology 9/2005)

Flight 175 hits the WTC South Tower. The picture was taken from a traffic helicopter.Flight 175 hits the WTC South Tower. The picture was taken from a traffic helicopter. [Source: WABC 7/ Salient Stills]Flight 175 hits the South Tower of the World Trade Center (Tower Two). Seismic records pinpoint the time at six seconds before 9:03 a.m. (rounded to 9:03 a.m.). Hijackers Marwan Alshehhi, Fayez Ahmed Banihammad, Mohand Alshehri, Hamza Alghamdi, and Ahmed Alghamdi presumably are killed instantly, and many more in the tower will die over the next few hours. (New York Times 9/12/2001; CNN 9/12/2001; CNN 9/17/2001; North American Aerospace Defense Command 9/18/2001; Cauchon 12/20/2001; Federal Emergency Management Agency 5/1/2002, pp. 1-10; Dwyer et al. 5/26/2002; Associated Press 8/21/2002; Moore and Cauchon 9/2/2002) According to the NIST report, the crash time is 9:02:59. (National Institute of Standards and Technology 9/2005, pp. 38) According to the 9/11 Commission Report, the crash time is 9:03:11. (9/11 Commission 7/24/2004, pp. 8) Millions watch the crash live on television. The plane strikes the 77th through 85th floors in the 110-story building. Approximately 100 people are killed or injured in the initial impact; 600 people in the tower eventually die. The death toll is far lower than in the North Tower because about two-thirds of the South Tower’s occupants have evacuated the building in the 17 minutes since the first tower was struck. (Cauchon 12/20/2001; National Institute of Standards and Technology 9/2005, pp. 5-9, 41) The combined death toll from the two towers is estimated at 2,819, not including the hijackers. (Associated Press 8/21/2002) The impact severs some columns on the south side of the South Tower. Each of the Twin Towers is designed as a “tube-in-tube” structure and the steel columns which support its weight are arranged around the perimeter and in the core. The plane, which is traveling at an estimated speed of around 500 mph (see October 2002-October 2005), severs 33 of the building’s 236 perimeter columns and damages another one. (National Institute of Standards and Technology 9/2005, pp. 39) The perimeter columns bear about half of the tower’s weight, so the damage to them reduces the tower’s ability to bear gravity loads by about 7.1 percent. (National Institute of Standards and Technology 9/2005, pp. 6) The actual damage to the 47 core columns is not known, as there are no photographs or videos of it, but there will be much speculation about this after 9/11. It will be suggested that some parts of the aircraft may be able to damage the core even after crashing through the exterior wall (see 8:46 a.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 107) According to NIST’s base case model, five of the core columns are severed and another five suffer some damage. (National Institute of Standards & Technology 9/2005, pp. 235 pdf file) This may reduce the tower’s ability to bear loads by a further approximately 8 percent, meaning that the aircraft impact accounted for a loss of about 15 percent of the building’s strength. This damage will be cited as an event contributing to the building’s collapse after 9/11 (see October 23, 2002 and October 19, 2004). NIST’s base case estimate of damage to the North Tower’s core will be similar, even though the aircraft impact there was dissimilar (see 8:46 a.m. September 11, 2001). Flight 11 hit the North Tower’s core head on, whereas Flight 175 only hits the corner of the South Tower’s core. (National Institute of Standards and Technology 9/2005, pp. 20-23, 38-41) In addition, some of the fireproofing on the steel columns and trusses may be dislodged (see 8:46 a.m. September 11, 2001). (National Institute of Standards & Technology 9/2005, pp. xxxvi, 83 pdf file) Photographs and videos of the towers will not show the state of fireproofing inside the buildings, but the National Institute of Standards and Technology (NIST) will try to estimate the damage to fireproofing using a series of computer models. Its severe case model (see (October 2002-October 2005)) will predict that 39 of the 47 core columns are stripped of their fireproofing on one or more floors and that fireproofing is stripped from trusses covering 80,000 ft2 of floor area, the equivalent of about two floors. NIST will say that the loss of fireproofing is a major cause of the collapse (see April 5, 2005), but only performs 15 tests on fireproofing samples (see October 26, 2005). (National Institute of Standards and Technology 9/2005, pp. 41) According to NIST, less fireproofing is stripped from the North Tower (see 8:46 a.m. September 11, 2001).

Shortly after the second attack on the World Trade Center, FBI agents call the FAA’s Cleveland Center and warn air traffic controllers there to keep an eye on Delta Air Lines Flight 1989. According to USA Today, controllers at the Cleveland Center, which is tracking Delta 1989, have already been watching this flight, and, like the FBI, suspect “that terrorists plan to hijack [it] next.” Although Delta 1989 is not showing any signs of being hijacked, the reason for their suspicion is that it has many similarities to the two aircraft that hit the World Trade Center: it is also a Boeing 767, heavy with fuel, and had taken off from Boston’s Logan Airport around the same time as they did. (Adams, Levin, and Morrison 8/13/2002) At 9:27 a.m., the FAA’s Boston Center will—apparently mistakenly—report that Delta 1989 is missing (see 9:27 a.m. September 11, 2001). (9/11 Commission 5/23/2003) And at around 9:30 a.m., Cleveland Center controllers will mistakenly conclude that it has been hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002)

Gary Walters.Gary Walters. [Source: C-SPAN]Gary Walters, the chief White House usher, and a few of his colleagues take the time to clear up the White House grounds ready for when President Bush returns, and even continue with the task after the White House is evacuated. Earlier this morning, many White House staffers were busy preparing for the annual Congressional picnic, which was scheduled to take place this evening (see 8:30 a.m. September 11, 2001). About 170 to 180 picnic tables have been set up on the South Lawn for the event. After he learns that a second plane has crashed into the World Trade Center (see 9:03 a.m. September 11, 2001), Walters decides to start moving the picnic tables off the lawn so Bush’s helicopter will be able to land on the grounds when the president returns to the White House. (National Journal 8/31/2002; Walters 4/4/2006; Peter Schnall 7/12/2016)
Usher Arranges to Clear the Lawn - He coordinates with the National Park Service, which is in charge of the White House grounds, to determine who will be clearing away the picnic tables. (Brower 2015, pp. 257) He then sets about moving the tables. “I got the staff together and started sending them out to the south grounds—anybody I could think of—because I knew that we had to try to move as quickly as possible,” he will later recall. (National Journal 8/31/2002) However, at about 9:45 a.m., the White House is evacuated after the Secret Service learns of a possible threat against it (see (9:45 a.m.) September 11, 2001). (Associated Press 2001 pdf file; CNN 9/12/2001)
Staffers Continue Clearing the Grounds, despite the Danger - Around this time, Walters sees the smoke coming from the Pentagon, which was attacked at 9:37 a.m. (see 9:37 a.m. September 11, 2001), and realizes the White House could be hit next. And yet he decides that he needs to stay where he is in order to clear up the grounds. “As far as I was concerned, my responsibility was there at the White House,” he will comment. (Brower 2015, pp. 258) “I knew we had to get those tables out,” he will state, adding, “I even felt more urgency, since obviously this was a coordinated attack now.” (National Journal 8/31/2002) While the Secret Service is ordering people to run for their lives, Walters grabs a few of his colleagues and tells them they need to stay and help clear away the picnic tables. “I got the word that everybody was evacuating, but we had something that we needed to do,” he will comment. (Brower 2015, pp. 258) After hearing that another suspicious plane is approaching, however, Walters and his colleagues go to the southeast knoll, a rise in the White House lawn, and just stand there, watching the sky and waiting.
Lawn Is Cleared by Early Afternoon - By around 11:00 a.m., they are becoming impatient. Walters therefore says, “Guys, let’s go move some picnic tables.” The men then start carrying the picnic tables off the lawn. A police officer joins them and eventually about a dozen people are helping them to move the tables. By around 1:00 p.m. all of the tables have been removed from the lawn. At about 3:45 p.m., Walters is called by someone from the military, who asks him to clear the South Lawn so the president’s helicopter will be able to land there. Walters laughs and says this has already been done. (National Journal 8/31/2002) The president’s helicopter, with Bush on board, will land on the South Lawn at around 6:55 p.m. (see (6:54 p.m.) September 11, 2001). (CNN 9/12/2001; Rove 2010, pp. 263)
Usher Will Later Justify His Actions - Walters will, in 2016, explain why he made the effort to clear up the White House grounds, despite the danger to himself and his colleagues. “One of the things that I turned to in my own mind on 9/11 was the role that the White House plays in disasters, wars,” he will say, adding, “People have a tendency to turn to the White House.” He will continue: “And I knew that the president wasn’t gonna be satisfied talking from a bunker somewhere or away from the White House. And that’s why we put the effort that we did into cleaning up the south grounds, so that [his] helicopter could land there. That was what the American people were used to seeing—the presidential helicopter coming in—and the president was going to address the nation from the Oval Office.” (Peter Schnall 7/12/2016)

Laura Bush, the president’s wife, leaves the White House in her limousine, on her way to Capitol Hill where she is scheduled to testify before a Congressional committee, but she is unaware that a second plane has crashed into the World Trade Center. (Burleigh 10/15/2001; National Journal 8/31/2002; Bush 2010, pp. 198) Bush is set to appear before the Senate Committee on Health, Education, Labor, and Pensions, where she will talk about early childhood education. (McCaleb 9/12/2001; CNN 9/11/2002) She was informed of the first crash at the WTC by her lead Secret Service agent as she was getting into her limousine (see (8:55 a.m.) September 11, 2001).
First Lady Unaware of Second Crash - The limousine leaves the White House at 9:07 a.m., according to Noelia Rodriguez, the first lady’s press secretary. (National Journal 8/31/2002) The second aircraft, Flight 175, hit the WTC four minutes earlier (see 9:03 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 8) However, Bush and those with her in the limousine are unaware of this. (Bush 2010, pp. 197-198)
First Lady Thinks about Canceling Hearing - Nevertheless, Bush already thinks the Senate hearing she is on her way to should perhaps be canceled, because New York Senator Hillary Clinton is on the education committee and is therefore supposed to attend. Bush will comment, “Even after the first [crash], when I thought it was just an accident, I thought we probably should cancel, because Mrs. Clinton was on the committee and she’s from New York, and she’d probably want to rush home at that time.” (McQuillan 9/10/2001; Gerhart 2004, pp. 162) All the same, Bush continues with the two-mile journey from the White House to Capitol Hill. She will learn of the second crash, and realize this is a terrorist attack, shortly before arriving at the Russell Senate Office Building, where the hearing is set to take place (see (9:14 a.m.) September 11, 2001).
Secret Service Allows Bush to Head to Event - Members of Bush’s Secret Service detail apparently raise no objection to Bush going ahead with her trip to Capitol Hill. (CNN 9/11/2002; Gerhart 2004, pp. 162; Bush 2010, pp. 198) The Secret Service is responsible for protecting the first lady, and she is considered to be one of the nation’s “most visible targets.” (US Department of the Treasury 5/8/2001; Office of Management and Budget 7/2001, pp. 82 pdf file) The agency’s mission includes keeping her “in sight and out of harm’s way,” according to a book about the Secret Service by author Philip Melanson. (Melanson 2002, pp. 273) And, as one of the Secret Service’s “permanent protectees,” the first lady, like the president, has a detail of special agents assigned to her. (United States Secret Service 2002) Bush currently travels with four Secret Service agents and two Secret Service cars. (Kessler 2006, pp. 136; Kessler 2009, pp. 181) However, the Secret Service will only take her away from Capitol Hill to a “secure location”—actually the agency’s headquarters—after the terrorist attacks have ended (see (10:10 a.m.-10:55 a.m.) September 11, 2001). (Associated Press 9/11/2001; National Journal 8/31/2002; Kessler 2006, pp. 136)

NEADS commander Robert Marr.NEADS commander Robert Marr. [Source: Dick Blume]Numerous reports incorrectly claiming that aircraft have been hijacked are received while the terrorist attacks are taking place and into the afternoon. (Code One Magazine 1/2002; Baker 3/31/2005; Graff 9/9/2016) There are “multiple erroneous reports of hijacked aircraft” during the morning, according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 28) At around 9:09 a.m., the FAA Command Center reports that 11 aircraft are either not communicating with FAA facilities or flying unexpected routes. (Scott 6/3/2002) Major General Larry Arnold, the commander of the Continental United States NORAD Region, will later claim that during the “four-hour ordeal” of the attacks, a total of 21 planes are identified as possible hijackings. (Filson 2002; Code One Magazine 1/2002; Filson 2003, pp. 71) Colonel Robert Marr, the battle commander at NORAD’s Northeast Air Defense Sector (NEADS), will say, “At one time I was told that across the nation there were some 29 different reports of hijackings.” (Baker 3/31/2005) Secret Service agent Dave Wilkinson, who travels with President Bush on Air Force One after it leaves Sarasota, Florida (see 9:54 a.m. September 11, 2001), will recall that by the time the plane reaches Offutt Air Force Base in Nebraska, at 2:50 p.m. (see 2:50 p.m. September 11, 2001), “there were like 15 to 20 planes still unaccounted for” nationwide. “For everything we knew, they were all hijacked,” he will say. (Graff 9/9/2016) Officials will claim that these false reports cause considerable confusion. Arnold will recall that particularly during the time between the Pentagon being hit at, 9:37 a.m., and Flight 93 going down, at around 10:03 a.m., “a number of aircraft are being called possibly hijacked.… There was a lot of confusion, as you can imagine.” (Filson 2003, pp. 71-73) He will say: “We were receiving many reports of hijacked aircraft. When we received those calls, we might not know from where the aircraft had departed. We also didn’t know the location of the airplane.” (Code One Magazine 1/2002) Marr will comment: “There were a number of false reports out there. What was valid? What was a guess? We just didn’t know.” (Filson 2003, pp. 73) Assistant Secretary of Defense for Public Affairs Victoria Clarke, who is in the Pentagon during the attacks and for most of the rest of the day, will recall: “There were lots of false signals out there. There were false hijack squawks, and a great part of the challenge was sorting through what was a legitimate threat and what wasn’t.” (CNN 6/17/2004; Clarke 2006, pp. 215-231)

The FAA Command Center in Herndon, Virginia.The FAA Command Center in Herndon, Virginia. [Source: Federal Aviation Administration]Ben Sliney, the national operations manager at the FAA’s Herndon Command Center, puts the word out that he wants all air traffic control facilities around the US to inform him of anything unusual that occurs with the flights they are handling. In response, news of suspicious activity quickly starts coming in to the Command Center. (Spencer 2008, pp. 125-126)
Command Center Calls Field Facilities - Sliney wants air traffic control facilities to notify him of anything out of the ordinary, such as a radar target disappearing from the radar scope, loss of communication with an aircraft, or an aircraft making an unauthorized change of course. He also wants to know immediately of any glitches that occur, even if these are common, everyday problems, such as a flight deviating from its course, missing a frequency change, overlooking a radio call, or getting a transponder code wrong. The center’s controllers at each regional desk therefore start calling their field facilities, and ask them to report any unusual occurrences. (9/11 Commission 7/22/2003 pdf file; Spencer 2008, pp. 125) The Command Center has telecommunications lines to all the major air traffic control facilities in the US, which enables it to reach out to those facilities and establish the big picture about aircraft activity. (Freni 2003, pp. 64)
'More and More' Responses Received - Following the call for information, numerous reports of suspicious activity are received from the air traffic control facilities. (Spencer 2008, pp. 125-126) Linda Schuessler, the deputy director of system operations at the Command Center, will later recall, “[W]e started getting more and more calls about bomb threats, about aircraft that we had lost communication or radar identification with.” (Bond 12/17/2001)
Center Lists Suspect Aircraft - Sliney wants a list compiled of the reportedly suspicious aircraft. A dry-erase board is set up in the middle of the room. On it a manager keeps track of the reports that are coming in, writing down where each suspect aircraft was last seen, who was working it, where the flight originated, and where it is going. Another person contacts the field facilities to follow up on the reports. (9/11 Commission 7/22/2003 pdf file; Spencer 2008, pp. 126)
Two Dozen Suspicious Flights - Author Pamela Freni will later describe, “[F]or the next several hours the call signs and status” of every suspicious aircraft will be recorded. Command Center personnel call “airline operations centers, trying to determine any crises on each flight. Only when each plane landed or was found safe did its identification information disappear from the board. Upward to two dozen were listed at one time, but ultimately the number was whittled to 11 highly suspicious cases” (see (9:09 a.m. and After) September 11, 2001). “Nine of those airplanes would land safely. Two of them—AA 77 and UA 93—would not.” (Freni 2003, pp. 64-65)

Tape recordings of the operations floor at NORAD’s Northeast Air Defense Sector (NEADS) in Rome, New York indicate that both NEADS and NORAD are experiencing significant problems communicating with other agencies:
bullet At 9:12 a.m., a member of staff at NEADS tells another military agency over the phone: “We’re trying to reach the military coordinator. We’re having a difficult time.” (North American Aerospace Defense Command 9/11/2001)
bullet At 9:22 a.m., a women at NEADS calls what is apparently an American Airlines office in New York, to ask about a report NEADS has received that Flight 11 is still airborne and headed towards Washington (see 9:21 a.m. September 11, 2001). After being given a phone number she needs to call for more information, the woman at NEADS replies: “[D]o me a favor and have them call us? We cannot call out for some reason.” (North American Aerospace Defense Command 9/11/2001)
bullet At around 10:31 a.m., someone from the 1st Fighter Wing, which is the host unit at Langley Air Force Base in Virginia, calls NEADS. During the conversation, they mention, “I tried to get a hold of NORAD… and their lines are all busy.” NEADS replies, “Yeah, I can believe it,” and adds, “Right now the circuits are so busy.” (North American Aerospace Defense Command 9/11/2001)
bullet Around 11:50 a.m., someone with the New York Air National Guard’s 109th Airlift Wing is on the phone to NEADS. They mention, “We’re having a tough time getting hold of you guys.” NEADS responds, “We’re having problems with our phone lines as well.” (North American Aerospace Defense Command 9/11/2001)
bullet At 11:57 a.m., a member of staff at NEADS complains: “They turned off all the goddamned lines to the outside.… No, local. So you can’t make outside phone calls.” (North American Aerospace Defense Command 9/11/2001)

The jet fuel that spilled from Flight 175 when it hit the South Tower (see 9:03 a.m. September 11, 2001) has mostly burned up by this time. The National Institute of Standards and Technology (NIST), which later investigates the collapses, will say the “initial jet fuel fires themselves lasted at most a few minutes.” (National Institute of Standards and Technology 9/2005, pp. 183) Engineering professor Forman Williams will say the jet fuel “burned for maybe 10 minutes.” (Chertoff et al. 3/2005) Flight 175, a Boeing 767, had a capacity of 23,980 gallons, but was only carrying about 9,100 gallons of fuel when it hit the WTC. NIST will estimate that less than 1,500 gallons were consumed in a fireball inside the tower and 910 to 2,275 gallons were consumed in the fireballs outside the building. Approximately 6,100 gallons therefore splashed onto the office furnishings and started fires on various floors. However, after the jet fuel is used up, office fires burn until the building collapses. NIST will calculate that there were about four pounds per square foot of combustibles in the office space, or about 60 tons per floor. Offices in the WTC actually had fewer combustibles than other similar spaces due to the small number of interior walls and limited bookshelf space. NIST will later find that only three of sixteen perimeter columns it recovers reached a temperature of 250°C and neither of the two core columns it retrieves reached this temperature. NIST will also find that none of the samples it acquires reached a temperature above 600°C (see August 27, 2003). While steel does not melt until its temperature is about 1,600°C, it may begin to lose significant strength at over 500°C. (National Institute of Standards and Technology 9/2005, pp. 29, 38, 42, 77) The jet fuel also burned up in the North Tower about 10 minutes after it was hit (see 8:57 a.m. September 11, 2001). When a group of firefighters reach the bottom impact floor in the South Tower just before collapse, they only find two isolated fires (see 9:52 a.m. September 11, 2001).

Noelia Rodríguez.Noelia Rodríguez. [Source: Harvard University]Laura Bush, the president’s wife, is told that a second plane has crashed into the World Trade Center and realizes this is a terrorist attack while she is being driven from the White House to Capitol Hill, where she is scheduled to testify before a Congressional committee. (Burleigh 10/15/2001; CNN 9/11/2002; Bush 2010, pp. 197-198) Bush is set to appear before the Senate Committee on Health, Education, Labor, and Pensions at 10:00 a.m., where she will talk about early childhood education. (McQuillan 9/10/2001; McCaleb 9/12/2001; CNN 9/11/2002) Her lead Secret Service agent informed her of the first crash at the WTC as she was getting into her limousine, outside the White House, but she’d thought the crash was an accident (see (8:55 a.m.) September 11, 2001). (National Journal 8/31/2002; Gerhart 2004, pp. 162)
First Lady Told of Second Crash, Knows It Is Terrorism - The Secret Service agents traveling with Bush now tell the first lady about the second crash at the WTC while her limousine is driving up Pennsylvania Avenue, approaching Capitol Hill. “The car fell silent; we sat in mute disbelief,” Bush will later recall. “One plane might be a strange accident; two planes were clearly an attack.” She will note, “We knew then that it was terrorism.” (CNN 9/11/2002; Bush 2010, pp. 198)
Members of First Lady's Staff Learn of Crash - Members of Bush’s staff also learn about the second crash around this time, while they are on their way to Capitol Hill. Ashleigh Adams, the first lady’s deputy press secretary, learns of it while traveling in the press van. “It must have been only a couple of minutes after we departed the White House,” Adams will recall, “that the reporters’ and photographers’ pagers and cell phones started to go off, and someone shouted to me, ‘Ashleigh, the second Twin Tower was hit.’” Adams calls Noelia Rodriguez, the first lady’s press secretary, who is traveling in the staff van, and tells her the news. After Rodriguez arrives on Capitol Hill, she will jump out of the staff van, run to Bush’s limousine, and get inside. But she will find that the first lady has already been informed of the second crash. (National Journal 8/31/2002)
First Lady Learns of Crash 11 Minutes after It Occurs - Bush will recall that she arrives at the Russell Senate Office Building, where the hearing she is set to attend is supposed to take place, two minutes after she is told about the second crash, at 9:16 a.m., meaning she learns of the crash at 9:14 a.m. (Bush 2010, pp. 198) This is 11 minutes after the second plane, Flight 175, hit the WTC (see 9:03 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 8)

Daniel Bueno.Daniel Bueno. [Source: Discovery Channel]At “approximately 9:15 a.m.,” according to the 9/11 Commission, Daniel Bueno, a supervisor at the FAA’s Boston Center, asks the FAA’s Herndon Command Center to contact all the FAA centers nationwide and instruct them to issue an alert, informing all airborne aircraft of the events unfolding in New York and advising them to heighten their cockpit security. Boston Center air traffic controllers have recently issued a similar alert to all aircraft in their airspace (see 9:09 a.m.-9:10 a.m. September 11, 2001). (9/11 Commission 8/26/2004, pp. 25-26) However, the 9/11 Commission will conclude, “We have found no evidence to suggest that the Command Center acted on this request or issued any type of cockpit security alert.” (9/11 Commission 7/24/2004, pp. 23) According to author Lynn Spencer, “The request never makes it to Ben Sliney,” the national operations manager at the Command Center. “Tragically, it is lost in the confusion and never gets past the staff person monitoring Sliney’s desk as events rapidly spiral out of control.” (Spencer 2008, pp. 99) But Ellen King, a Command Center manager, offers a different explanation. She will tell the 9/11 Commission that the FAA culture and mindset on 9/11 are such that the FAA “would never have relayed this message directly to all pilots.… [T]he FAA would pass situational awareness to the airline company representatives who, in turn, would determine if such action was necessary.” (9/11 Commission 8/26/2004, pp. 26 and 92)

Frank Brogan.Frank Brogan. [Source: Publicity photo]The Secret Service allows President Bush to stay at the Emma E. Booker Elementary School in Sarasota, Florida, after a reading demonstration he was participating in has ended, even though he could be in danger at the school. (Martin 7/4/2004; Graff 9/9/2016) Bush has just left the classroom where the reading demonstration was held and entered a holding room next to it. There, he talks on the phone with officials in Washington, DC, and works on a statement to the nation that he wants to deliver before leaving the school (see (9:16 a.m.-9:29 a.m.) September 11, 2001). Members of his staff in the holding room apparently have little information about the terrorist attacks beyond what has been reported on television. They are in contact with the White House Situation Room but not the Pentagon and, according to the 9/11 Commission Report, “No one in the traveling party had any information during this time that other aircraft were hijacked or missing.” (Sammon 10/7/2002; 9/11 Commission 7/24/2004, pp. 38-39) All the same, Secret Service agents and other personnel with the president are concerned that Bush could be in danger at the school, and some of them are worried that terrorists might attack the place (see (9:04 a.m.-9:33 a.m.) September 11, 2001). (Morell 9/2006 pdf file; Graff 9/9/2016)
Bush's Lead Agent Wants to Evacuate the President - Edward Marinzel, the head of Bush’s Secret Service detail, is “eager to get the president out of the school, to Air Force One, and airborne,” according to Karl Rove, Bush’s senior adviser. (Rove 2010, pp. 251) He therefore approaches Bush and tells him, “We need to get you to Air Force One and get you airborne.” (Graff 9/9/2016) However, his concern does not result in Bush being evacuated from the school right away. The Secret Service will later tell the 9/11 Commission that although its agents “were anxious to move the president to a safer location” while he was in the holding room, they “did not think it imperative for him to run out the door.” (9/11 Commission 7/24/2004, pp. 39)
Chief of Staff Wants Bush to Give His Speech before Leaving - Andrew Card, Bush’s chief of staff, suggests that Bush should be allowed to give his speech to the nation from the school before leaving. He says that “we have a whole auditorium full, waiting for the next event”—meaning Bush’s speech—and there is “no imminent threat there in Sarasota,” according to Dave Wilkinson, assistant special agent in charge of the presidential protection division. The Secret Service therefore accepts a compromise and agrees that Bush can give his speech before leaving. (Graff 9/9/2016)
Bush Should Be Taken to the 'Closest Secure Location' - Author Philip Melanson, an expert on the Secret Service, will criticize Bush’s Secret Service detail for failing to get the president away from the school immediately after the second hijacked plane crashed into the World Trade Center, at 9:03 a.m. (see 9:03 a.m. September 11, 2001). “With an unfolding terrorist attack, the procedure should have been to get the president to the closest secure location as quickly as possible, which clearly is not a school,” he will state. (Martin 7/4/2004) Bush himself will comment on the situation while he is in the holding room, saying, “One thing for certain: I needed to get out of where I was.” (Sammon 2002, pp. 93)
Bush Refuses to Leave - And yet the president refuses to leave the school at this time when he is urged to do so, according to Frank Brogan, lieutenant governor of Florida, who is in the holding room with him. “The Secret Service tried to get the president to return to Air Force One immediately,” Brogan will state, “but he refused, saying he was committed to staying on the ground long enough to write a statement about what was happening, read it to the nation, and lead a moment of silence for the victims.” (Frost 9/18/2003) Bush “was courageously insistent about remaining on the ground to make a statement to the people of America,” Brogan will comment. (Stein 9/11/2011) Bush will give his speech to the nation, which will be broadcast live on television, from the school library at 9:30 a.m. (see 9:30 a.m. September 11, 2001). (White House 9/11/2001; Bohn 2015, pp. 215) He will finally leave the school at around 9:35 a.m. (see (9:34 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 39)

Brian Wilson.Brian Wilson. [Source: Publicity photo]There is apparently no increase in the level of security at the Capitol building in Washington, DC, even though First Lady Laura Bush has arrived at the nearby Russell Senate Office Building and more than 10 minutes have passed since a second plane hit the World Trade Center. (Gilbert et al. 2002, pp. 64; 9/11 Commission 7/24/2004, pp. 8; Bush 2010, pp. 198) At 9:16 a.m., Bush arrived at the Russell Senate Office Building, located just north of the Capitol building, where she was scheduled to testify before a Senate committee at 10:00 a.m. (McQuillan 9/10/2001; McCaleb 9/12/2001; Bush 2010, pp. 198)
Reporter Sees No Signs of Increased Security - The first lady is considered one of the nation’s “most visible targets,” and, as one of the Secret Service’s “permanent protectees,” like the president, she has a detail of special agents assigned to her. (US Department of the Treasury 5/8/2001; Office of Management and Budget 7/2001, pp. 82 pdf file; United States Secret Service 2002) And yet, even though Bush has arrived on Capitol Hill, and over 10 minutes have passed since the second aircraft hit the WTC (see 9:03 a.m. September 11, 2001), there is apparently no increase in the level of security at the Capitol building. Fox News correspondent Brian Wilson will later recall that when reporting from the Capitol building around this time, he is “talking about the first lady being in the Capitol and saying that I had not seen any signs of tighter security in the building.”
Reporter Surprised at Plan to Hold a Photo Op - Wilson is also surprised that, although the Senate hearing Bush was scheduled to attend has been canceled, the first lady is still going to make a public appearance. He will comment that “they were (incredibly) trying to set up a brief photo opportunity.” (Gilbert et al. 2002, pp. 64; 9/11 Commission 7/24/2004, pp. 8) (Wilson is presumably referring to Laura Bush’s appearance before reporters and cameras alongside Senators Edward Kennedy (D-MA) and Judd Gregg (R-NH), which takes place at 9:41 a.m. (see 9:41 a.m. September 11, 2001). (Associated Press 9/11/2001; CNN 9/11/2001; Bush 2010, pp. 199) )
Capitol Evacuated Later On - The Capitol building will only be evacuated at 9:48 a.m., apparently in response to reports of a plane heading toward it (see 9:48 a.m. September 11, 2001). (Associated Press 9/11/2001; Associated Press 8/21/2002; CNN 9/11/2006) The first lady will only be taken away from the Russell Office Building to a “secure location” by members of the Secret Service at 10:10 a.m. (see (10:10 a.m.-10:55 a.m.) September 11, 2001). (Associated Press 9/11/2001; National Journal 8/31/2002; Bush 2010, pp. 200)

The FAA’s New England regional office calls the FAA’s Herndon Command Center, and asks it to tell Cleveland Center to contact Delta Air Lines Flight 1989 and advise it to use extra cockpit security. The reason the New England regional office makes this request is unclear. (9/11 Commission 7/24/2004, pp. 10) As the 9/11 Commission will describe, apparently in response to the request, “[A]t 9:19 the FAA… Command Center in Herndon ordered controllers to send a cockpit warning to Delta 1989 because, like American 11 and United 175, it was a transcontinental flight departing Boston’s Logan Airport.” (9/11 Commission 7/24/2004, pp. 455) Minutes earlier, the FAA’s Boston Center asked the Command Center to contact the nation’s FAA centers and instruct them to tell all airborne aircraft to increase their cockpit security (see (9:15 a.m.) September 11, 2001). The Command Center’s instruction to air traffic controllers about Delta 1989 is apparently an exception, as the 9/11 Commission will say it found “no evidence to suggest that the Command Center acted on this request.” (9/11 Commission 7/24/2004, pp. 23; 9/11 Commission 8/26/2004, pp. 25-26) Delta 1989 will subsequently be mistakenly reported as having been hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001). (Adams, Levin, and Morrison 8/13/2002; Bronner 8/1/2006)

According to the 9/11 Commission, NEADS is contacted by the FAA’s Boston Center. Colin Scoggins, Boston Center’s military liaison, tells it: “I just had a report that American 11 is still in the air, and it’s on its way towards—heading towards Washington.… That was another—it was evidently another aircraft that hit the tower. That’s the latest report we have.… I’m going to try to confirm an ID for you, but I would assume he’s somewhere over, uh, either New Jersey or somewhere further south.” The NEADS official asks: “He—American 11 is a hijack?… And he’s heading into Washington?” Scoggins answers yes both times and adds, “This could be a third aircraft.” Somehow Boston Center has been told by FAA headquarters that Flight 11 is still airborne, but the 9/11 Commission will say it hasn’t been able to find where this mistaken information came from.
Scoggins Makes Error - Vanity Fair magazine will later add, “In Boston, it is Colin Scoggins who has made the mistaken call.” Scoggins will explain why he believes he made this error: “With American Airlines, we could never confirm if [Flight 11] was down or not, so that left doubt in our minds.” He says he was monitoring a conference call between FAA centers (see 8:28 a.m. September 11, 2001), “when the word came across—from whom or where isn’t clear—that American 11 was thought to be headed for Washington.” However, Boston Center was never tracking Flight 11 on radar after losing sight of it near Manhattan: “The plane’s course, had it continued south past New York in the direction it was flying before it dipped below radar coverage, would have had it headed on a straight course toward DC. This was all controllers were going on.” Scoggins says, “After talking to a supervisor, I made the call and said [American 11] is still in the air.” (Northeast Air Defense Sector 9/11/2001; 9/11 Commission 6/17/2004; Bronner 8/1/2006)
Myers Refers to Mistaken Report - In the hours following the attacks, acting Chairman of the Joint Chiefs of Staff Richard Myers will apparently refer to this erroneous report that Flight 11 is still airborne and heading toward Washington, telling the Associated Press that “prior to the crash into the Pentagon, military officials had been notified that another hijacked plane had been heading from the New York area to Washington.” Myers will say “he assumed that hijacked plane was the one that hit the Pentagon, though he couldn’t be sure.” (Fournier 9/11/2001)

Having just received an incorrect report that Flight 11—which has already hit the World Trade Center—is still airborne and heading toward Washington (see 9:21 a.m. September 11, 2001), technicians at NORAD’s Northeast Air Defense Sector (NEADS) try, unsuccessfully, to locate the aircraft on their radar screens. (Spencer 2008, pp. 137-139) At NEADS, Major James Anderson says the hijackers are “probably not squawking anything anyway,” meaning their plane’s transponder is not broadcasting a signal. He adds, “I mean, obviously these guys are in the cockpit.” Major Kevin Nasypany, the mission crew commander, replies, “These guys are smart.” Another member of staff adds, “Yeah, they knew exactly what they wanted to do.” (Bronner 8/1/2006) After giving the order to launch the F-16s kept on alert at Langley Air Force Base (see 9:23 a.m. September 11, 2001), Nasypany calls out, “I need more trackers!” He needs his technicians to locate the hijacked plane on radar so that his weapons team can pass on its coordinates to the Langley fighters. But the trackers are unable to find the transponder code for Flight 11 on their radar screens. They begin calling up, one at a time, the tracks on their screens that are in the airspace between New York and Washington, and attach a tag to each after it has been identified. One technician draws a line on a map between New York and Washington, showing the area across which Flight 11 would be traveling. It includes Philadelphia, Atlantic City, and Baltimore. He looks at his radar screen and sees there are hundreds of tracks in that area. (Spencer 2008, pp. 138-139) Colin Scoggins, the military liaison at the FAA’s Boston Center, who gave NEADS the incorrect report about Flight 11, will later say he’d only heard the plane was still airborne and heading for Washington on a conference call between FAA centers. According to Vanity Fair, air traffic controllers “were never tracking an actual plane on the radar after losing American 11 near Manhattan, but if it had been flying low enough, the plane could have gone undetected.” (Bronner 8/1/2006)

Alan Scott.Alan Scott. [Source: United States Air Force]NORAD’s Northeast Air Defense Sector (NEADS) processes and transmits an order to Langley Air Force Base in Virginia, to scramble three of its F-16 fighter jets. (North American Aerospace Defense Command 9/18/2001; Tyson 4/16/2002; 9/11 Commission 8/26/2004, pp. 16) NEADS mission crew commander Major Kevin Nasypany instructed his personnel to issue this order one minute earlier (see 9:23 a.m. September 11, 2001). Although he’d originally wanted the Langley jets sent to the Washington area, he will soon adjust this heading to send them to the Baltimore area. (9/11 Commission 7/24/2004, pp. 27)
NEADS Orders Jets North - A NEADS officer calls Langley Air Force Base and instructs: “Langley command post, this is Huntress with an active air defense scramble for Quit 2-5 and Quit 2-6.… Scramble immediately.… Scramble on a heading of 010, flight level 290.” This means the jets are to head in a direction just east of north, at an altitude of 29,000 feet. (9/11 Commission 1/9/2004; 9/11 Commission 8/26/2004, pp. 96; Spencer 2008, pp. 142) At Langley Air Force Base, a Klaxon horn will sound, notifying the pilots of the scramble order (see 9:24 a.m. September 11, 2001), and they will be airborne by 9:30 (see (9:25 a.m.-9:30 a.m.) September 11, 2001). (Filson 2003, pp. 63; 9/11 Commission 8/26/2004, pp. 16; Spencer 2008, pp. 141)
Fighters Launched in Response to Flight 77? - In later testimony, military officials will give contradictory explanations for why the Langley F-16s are scrambled. An early NORAD timeline will indicate the fighters are launched in response to NORAD being notified at 9:24 that Flight 77 has been hijacked (see (9:24 a.m.) September 11, 2001). (North American Aerospace Defense Command 9/18/2001) Colonel Alan Scott, the former vice commander of the Continental US NORAD Region (CONR), will suggest the same, telling the 9/11 Commission: “At 9:24 the FAA reports a possible hijack of [Flight] 77.… And at that moment as well is when the Langley F-16s were scrambled out of Langley.” (9/11 Commission 5/23/2003; 1st Air Force 8/8/2006) And a timeline provided by senior Defense Department officials to CNN will state, “NORAD orders jets scrambled from Langley” in order to “head to intercept” Flight 77. (CNN 9/17/2001)
In Response to Flight 93? - However, Major General Larry Arnold, the CONR commander, will give a different explanation. He will tell the 9/11 Commission, “we launched the aircraft out of Langley to put them over top of Washington, DC, not in response to American Airline 77, but really to put them in position in case United 93 were to head that way.” (9/11 Commission 5/23/2003)
In Response to Incorrect Report about Flight 11? - In 2004, the 9/11 Commission will dispute both these previous explanations, and conclude that the Langley jets are scrambled in response to an incorrect report that Flight 11 is still airborne and heading toward Washington, DC (see 9:21 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 26-27; 9/11 Commission 8/26/2004, pp. 15) Tape recordings of the NEADS operations floor will corroborate this account. (Bronner 8/1/2006) According to the 9/11 Commission, its conclusion is also confirmed by “taped conversations at FAA centers; contemporaneous logs compiled at NEADS, Continental Region headquarters, and NORAD; and other records.” (9/11 Commission 7/24/2004, pp. 34) Major Nasypany will tell the Commission that the reason the Langley jets are directed toward the Baltimore area is to position them between the reportedly southbound Flight 11 and Washington, as a “barrier cap.” (9/11 Commission 7/24/2004, pp. 27 and 461) John Farmer, senior counsel to the 9/11 Commission, will later suggest that NORAD deliberately misled Congress and the Commission by hiding the fact that the Langley scramble takes place in response to the erroneous report that Flight 11 is still airborne. He will write that the mistaken report “appears in more logs, and on more tapes, than any other single event that morning.… It was the reason for the Langley scramble; it had triggered the Air Threat Conference Call. Yet it had never been disclosed; it was, instead, talked around.” (Farmer 2009, pp. 266-267)
Conflicting Times - Early news reports will put the time of the scramble order slightly later than the 9/11 Commission places it, between 9:25 and “about 9:27.” (Washington Post 9/12/2001; CNN 9/17/2001; CNN 9/19/2001) But a NORAD timeline released a week after the attacks will give the same time as the Commission does, of 9:24. (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 27)

The FAA’s Boston Center contacts NORAD’s Northeast Air Defense Sector (NEADS) and reports that another aircraft, Delta Air Lines Flight 1989, is missing. (9/11 Commission 5/23/2003; 9/11 Commission 6/17/2003; 9/11 Commission 2004) Why the Boston Center does this is unclear, since Delta 1989 is currently being handled by the FAA’s Cleveland Center, not the Boston Center. (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 10) And, according to the 9/11 Commission, Delta 1989 “never turned off its transponder,” so it should still be clearly visible on radar. (9/11 Commission 7/24/2004, pp. 16, 28) Twelve minutes later, at 9:39, Boston Center will call NEADS and incorrectly tell it that Delta 1989 is a possible hijack (see 9:39 a.m. September 11, 2001). (9/11 Commission 2004; Bronner 8/1/2006)

A Delta Air Lines Boeing 767, the same kind of aircraft as Delta 1989.A Delta Air Lines Boeing 767, the same kind of aircraft as Delta 1989. [Source: Public domain]The FAA’s Cleveland Center incorrectly concludes that Delta Air Lines Flight 1989 has been hijacked, but accounts will conflict over how it comes to this conclusion. (Adams, Levin, and Morrison 8/13/2002; Spencer 2008, pp. 167) Delta 1989, a Boeing 767, is currently in the sector of airspace being monitored by Cleveland Center air traffic controller John Werth. (9/11 Commission 10/2/2003 pdf file; Levin 9/11/2008) It is flying west over Pennsylvania, approaching the Ohio border, and is about 25 miles behind Flight 93. FBI agents suspected Delta 1989 might be the next plane to be hijacked and called the Cleveland Center after the second attack on the World Trade Center, with the warning to watch this flight (see Shortly After 9:03 a.m. September 11, 2001). (Adams, Levin, and Morrison 8/13/2002) A supervisor at the center told Werth to keep an eye on the flight because, as Werth will later recall, “he was a suspected hijacking because he had taken off from Boston at approximately the same time as” the first two hijacked aircraft, Flights 11 and 175. (9/11 Commission 10/1/2003 pdf file; Levin 9/11/2008)
Controllers Hear Suspicious Communications - When, at 9:28, Werth hears the sound of screaming (subsequently determined to have come from Flight 93) over the radio (see (9:28 a.m.) September 11, 2001), he is unsure which of seven or eight possible aircraft it is coming from. The radio frequency is put on the speaker so other controllers can hear it, and they subsequently make out the words, “get out of here.” (9/11 Commission 10/1/2003 pdf file; 9/11 Commission 7/24/2004, pp. 11, 28)
Controllers Think Delta 1989 Is Hijacked - According to USA Today, when Cleveland Center controllers then hear a voice with a heavy accent over the radio, saying “Ladies and gentlemen: Here the captain.… We have a bomb on board” (see (9:32 a.m.) September 11, 2001), they mistakenly think it is coming from Delta 1989, not Flight 93. They suspect the flight has been hijacked, and start informing their chain of command. “Officials at Cleveland Center rush word to Washington: Hijackers have another flight. At the Federal Aviation Administration’s Command Center in Herndon, Virginia, Delta Flight 1989 joins a growing list of suspicious jets.” (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 12)
Werth Decides Hijacked Aircraft Is Flight 93 - Werth then calls all of the aircraft in his sector, and Flight 93 is the only one that does not respond. He also sees Flight 93 go into a quick descent and then come back up again. Werth therefore concludes that it is Flight 93, not Delta 1989, that has been hijacked, and instructs his supervisor to “tell Washington” of this. (9/11 Commission 10/1/2003 pdf file; 9/11 Commission 10/2/2003 pdf file) However, events in the following minutes will cause Cleveland Center controllers to remain suspicious of Delta 1989 (see (Shortly After 9:44 a.m.) September 11, 2001 and 9:45 a.m. September 11, 2001). (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 10/2/2003 pdf file; Spencer 2008, pp. 168; Levin 9/11/2008)
Book Gives Alternative Account - In a book published in 2008, author Lynn Spencer will give a different explanation for why Cleveland Center becomes suspicious of Delta 1989. According to her account, after hearing a later radio transmission where a hijacker again says “There is a bomb on board” (see (9:39 a.m.) September 11, 2001), Werth begins to hand off his flights to other controllers so he can devote his full attention to Flight 93. “In the distraction of the emergency, the crew of Delta 1989 misses the hand-off to the new frequency. The new sector controller for Delta 1989 calls out to the plane several times and gets no response.” As a result, “News travels fast,” and “Soon, word on the FAA’s open teleconference call is that a fifth aircraft is out of radio contact: Delta 1989… is added to the list of suspect aircraft.” (Spencer 2008, pp. 167) At 9:39 a.m., even though it is not responsible for handling Delta 1989, the FAA’s Boston Center will call NORAD’s Northeast Air Defense Sector (NEADS) and incorrectly tell it that Delta 1989 is another possible hijack (see 9:39 a.m. September 11, 2001). (9/11 Commission 2004; Bronner 8/1/2006)

The National Miilitary Command Center, inside the Pentagon.The National Miilitary Command Center, inside the Pentagon. [Source: US Department of Defense]The National Military Command Center (NMCC) at the Pentagon finally commences and runs a “significant event conference” in response to the ongoing crisis, 26 minutes after the second plane hit the World Trade Center and officers in the NMCC realized the US was under terrorist attack. (9/11 Commission 6/17/2004 pdf file; 9/11 Commission 7/24/2004, pp. 37; Garamone 9/7/2006)
NMCC Directors Decided to Establish Conference - After those in the NMCC saw Flight 175 hitting the WTC live on television at 9:03 a.m. (see 9:03 a.m. September 11, 2001), Captain Charles Leidig, the acting deputy director for operations (DDO) in the center throughout the attacks, and Commander Pat Gardner, the assistant DDO, talked about the need to convene a significant event conference so there could be a discussion of what actions were to be taken in response. The DDO and the assistant DDO are the two officers responsible for deciding what type of conference the NMCC should convene, and when it should do so. Because there is no specific procedure for dealing with terrorist attacks, Leidig and Gardner decided a significant event conference would most suit their needs, because it would have the flexibility of allowing more people to be added in as required. They also discussed who would need to be on this conference. (9/11 Commission 4/29/2004 pdf file) But Major Charles Chambers, who is currently on duty in the NMCC, will give a slightly different account. According to Chambers, Staff Sergeant Val Harrison had a phone in her hand and said NORAD was asking for a significant event conference. Leidig had agreed, and so Harrison started establishing the conference.
Conference Begins with Recap of Situation - According to Chambers, “The computer does a mass dialing to connect to those command centers that are always included” in an NMCC conference call, but Harrison also had to manually call the civilian agencies that were going to be included in the conference, such as the FAA, the FBI, and the Federal Emergency Management Agency (FEMA). (US Department of Defense 9/2001) The conference then begins at 9:29 a.m. with a brief recap: Two aircraft have hit the WTC, there is a confirmed hijacking of Flight 11, and fighter jets have been scrambled from Otis Air National Guard Base in Massachusetts (see 8:46 a.m. September 11, 2001). The FAA is asked to provide an update, but its line is silent as the agency has not yet been added to the call (see (9:29 a.m.-12:00 p.m.) September 11, 2001). A minute later, Leidig states that it has just been confirmed that Flight 11 is still airborne and is heading toward Washington, DC. (This incorrect information apparently arose minutes earlier during a conference call between FAA centers (see 9:21 a.m. September 11, 2001).) (9/11 Commission 7/24/2004, pp. 37) NMCC conference calls are moderated by the DDO. (9/11 Commission 7/21/2003 pdf file) Leidig will tell the 9/11 Commission that they are conducted over “a special phone circuit, and it’s classified to be able to pass information, relay information between very senior leadership all the way over to the White House.” (9/11 Commission 6/17/2004)
NMCC Struggled to Convene Conference - Some officers currently on duty in the NMCC will later complain about circumstances that delayed the establishing of the significant event conference. Chambers will recall that the conference took “much longer than expected to bring up.” (US Department of Defense 9/2001) Gardner will tell the 9/11 Commission that the NMCC had been “struggling to build the conference,” which “didn’t get off as quickly as hoped.” (9/11 Commission 5/5/2004) He will describe his “frustration that it wasn’t brought up more quickly.” (9/11 Commission 5/12/2004)
Other Conference and Connection Problems Delayed Call - Preparations for the conference were disrupted as a result of the CIA convening a National Operations and Intelligence Watch Officer Network (NOIWON) conference call between government agencies in the Washington area, reportedly at sometime between 9:16 a.m. and 9:25 a.m. (see (Between 9:16 a.m. and 9:25 a.m.) September 11, 2001). According to a 9/11 Commission memorandum, the NMCC had “abandoned its attempt to convene a [significant event conference] so its watch officers could participate in the NOIWON conference.” (Federal Aviation Administration 9/11/2001; Federal Aviation Administration 9/11/2001; 9/11 Commission 7/21/2003 pdf file) Another factor that slowed attempts to convene the significant event conference was a problem with connecting some agencies to it. According to Chambers, “A couple of the civil agencies couldn’t be reached and others kept dropping off moments after connecting.” He will recall, “We finally decided to proceed without those agencies that were having phone problems.” (US Department of Defense 9/2001) Leidig had announced that the NMCC would have to start without those agencies and add them to the conference later on. (9/11 Commission 5/12/2004)
Call Ends after Five Minutes - The significant event conference ends after only a few minutes, following a recommendation by NORAD that it be reconvened as an “air threat conference.” It is brought to an end at around 9:34 a.m., and will resume as an air threat conference at 9:37 a.m. (see 9:37 a.m.-9:39 a.m. September 11, 2001). (9/11 Commission 4/29/2004 pdf file; 9/11 Commission 7/24/2004, pp. 37)

John Werth, the air traffic controller at the FAA’s Cleveland Center who is monitoring the now-hijacked Flight 93, has to move Delta Air Lines Flight 1989 and several other aircraft, in order to get them out of Flight 93’s path and avoid a midair collision. (9/11 Commission 8/26/2004, pp. 39; Levin 9/11/2008)
Controller Begins Moving Aircraft - At 9:30 a.m., Werth begins moving other aircraft away from Flight 93 due to the hijacked flight’s failure to acknowledge his radio transmissions. (Federal Aviation Administration 9/17/2001 pdf file) Furthermore, as USA Today will describe, Flight 93 “became erratic. It sped up and started gaining on another United [Airlines] flight. Werth commanded the second jet to turn right. Seconds later, Flight 93 turned to the right, too.” (Levin 9/11/2008)
Controller Worried about Possible Collision - Then, between 9:34 a.m. and 9:38 a.m., Flight 93 climbs from 35,000 feet up to 41,000 feet (see (9:35 a.m.) September 11, 2001), and during this period it reverses course and heads back east (see (9:36 a.m.) September 11, 2001). (National Transportation Safety Board 2/19/2002 pdf file; 9/11 Commission 8/26/2004, pp. 39, 41) Werth becomes concerned about the possibility of a midair collision. (9/11 Commission 10/1/2003 pdf file)
Delta 1989 Turns Several Times - As Flight 93 climbs, Werth instructs Delta 1989, which is also in the airspace he is monitoring, to turn right, so as to get away from the hijacked jet. As Flight 93 continues its turn back toward the east, Werth has to move Delta 1989 out of its path. In all, he has to turn the Delta flight several times. (Levin 9/11/2008) Minutes earlier, Cleveland Center concluded incorrectly that Delta 1989, not Flight 93, was the aircraft being hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002) The Delta pilots’ normal responses to his instructions reassure Werth that it is a “safe bet that the Delta flight hadn’t been hijacked.” (Levin 9/11/2008)
Other Aircraft Moved out of Path - According to the 9/11 Commission, while Flight 93 is ascending to 41,000 feet, Werth has to move “several aircraft out of its way,” acting “decisively to clear the other flights in his sector from Flight 93’s path.” (9/11 Commission 8/26/2004, pp. 39)

At the FAA’s Cleveland Center, an air traffic controller hears a transmission, presumably made by Flight 93 hijacker-pilot Ziad Jarrah, stating: “Ladies and gentlemen: Here the captain, please sit down, keep remaining sitting. We have a bomb on board. So, sit.” (9/11 Commission 7/24/2004, pp. 12; 9/11 Commission 8/26/2004, pp. 39) As the 9/11 Commission later notes, “Like [Mohamed] Atta on Flight 11, Jarrah apparently did not know how to operate the communication radios; thus his attempts to communicate with the passengers were broadcast on the [air traffic control] channel.” (9/11 Commission 8/26/2004, pp. 98) While this communication is assumed to have come from Flight 93, an early FAA report states that it came “from an unknown origin.” (Federal Aviation Administration 9/17/2001 pdf file) According to Newsweek, just prior to the communication, Cleveland Center controllers heard the sound of screaming from the flight. (Breslau 9/22/2001) The 9/11 Commission states that, around the time of the transmission, the plane’s cockpit voice recording indicates “that a woman, most likely a flight attendant, was being held captive in the cockpit. She struggled with one of the hijackers who killed or otherwise silenced her.” (9/11 Commission 7/24/2004, pp. 12; 9/11 Commission 8/26/2004, pp. 39) Though the Cleveland air traffic controller understands the hijacker’s communication, he responds to it: “Calling Cleveland Center, you’re unreadable. Say again, slowly.” He also notifies his supervisor who passes the information up the chain of command, and the FAA’s Command Center is subsequently informed, “United 93 may have a bomb on board.” At 9:34 the Command Center will relay this information to FAA headquarters (see 9:34 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 28)

According to the 9/11 Commission, word of Flight 93’s hijacking reaches FAA headquarters. By this time, headquarters has established an open line of communication with the FAA Command Center at Herndon, Virginia. It had instructed the center to poll all flight control centers about suspect aircraft. So, at this time, the Command Center passes on Cleveland’s message: “United 93 may have a bomb on board.” The FAA headquarters apparently does not forward this information to the military, despite having the responsibility for doing so. Ben Sliney, the FAA’s national operations manager at its Herndon Command Center, will later recount, “I do know that all the information was being relayed to headquarters and, at least as far as we were concerned, it should have been. We thought it had been given to the military at each juncture.” The Command Center continually updates FAA headquarters on Flight 93 until it crashes. (9/11 Commission 6/17/2004; CBC 9/12/2006)

Personnel at NORAD’s Northeast Air Defense Sector (NEADS) are following Flight 93 while it is still flying west and before it reverses course, according to the accounts of some NEADS and NORAD officials, but their claims will be disputed by the 9/11 Commission. (Filson 2003, pp. 68, 71; 9/11 Commission 10/30/2003 pdf file; 9/11 Commission 8/26/2004, pp. 100-101)
NEADS Watches Flight 93 Heading West - Colonel Robert Marr, the battle commander at NEADS, will later recall that around this time, “his focus” is on Flight 93, which, he will say, is “circling over Chicago.” (9/11 Commission 10/27/2003 pdf file) Marr will tell author Leslie Filson that the flight is being monitored by NEADS personnel while it is still flying west. He will describe: “We don’t have fighters that way and we think [Flight 93 is] headed toward Detroit or Chicago. I’m thinking Chicago is the target.” Marr will say NEADS contacts an Air National Guard base in the area, “so they [can] head off 93 at the pass” (see (9:55 a.m.) September 11, 2001). (Filson 2003, pp. 68)
NORAD Watching Flight 93 When It Changes Course - Lieutenant Colonel Mark Stuart, an intelligence officer who is in the NEADS battle cab with Marr, will give a similar account. He will say that when the Flight 93 “incident began to unfold,” it was his “professional judgment that the plane was going to strike the Sears Tower in Chicago, and he passed that judgment to Colonel Marr.” (9/11 Commission 10/30/2003 pdf file) And Major General Larry Arnold, the commander of the Continental United States NORAD Region, will say that NORAD personnel are already following Flight 93 at 9:36 a.m., when it reverses course and heads back east (see (9:36 a.m.) September 11, 2001). He will tell Filson, “[W]e watched the 93 track as it meandered around the Ohio-Pennsylvania area and started to turn south toward [Washington,] DC.” (National Transportation Safety Board 2/19/2002 pdf file; Filson 2003, pp. 71; 9/11 Commission 8/26/2004, pp. 41) Marr will similarly say “that he distinctly remembers watching [Flight 93] come west and turn over Cleveland.” (9/11 Commission 1/23/2004 pdf file)
9/11 Commission Says No One at NORAD Watches Flight 93 - However, the 9/11 Commission will dispute these accounts. It will state: “The record demonstrates… that no one at any level in NORAD… ever ‘watched the 93 track’ start to turn south towards Washington, DC. In fact, the military never saw Flight 93 at all.” (9/11 Commission 8/26/2004, pp. 101) NEADS will first be alerted to Flight 93 significantly later, at 10:07 a.m., according to the 9/11 Commission (see 10:05 a.m.-10:08 a.m. September 11, 2001).
Officer May Have Confused Flight 93 with Delta 1989 - The 9/11 Commission will suggest to Marr that he was mistaking Flight 93 for Delta Air Lines Flight 1989, an aircraft that is incorrectly reported as having been hijacked around this time (see (9:28 a.m.-9:33 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001). Marr will respond that he may have confused Flight 93 with Delta 1989, but say that “he believes the last point at which he saw Flight 93 was when it was over Ohio, before it turned off its transponder,” which happens at 9:41 a.m. (see (9:40 a.m.) September 11, 2001). (9/11 Commission 1/23/2004 pdf file; 9/11 Commission 7/24/2004, pp. 27-30) Senior officials, including Marr and Arnold, will claim that the US military continues following Flight 93 after it reverses course and is heading toward Washington (see (9:36 a.m.-10:06 a.m.) September 11, 2001). (Filson 2003, pp. 71, 73) Stuart will say that after Flight 93 changes course, he “and other NEADS people knew it was headed to DC.” (9/11 Commission 10/30/2003 pdf file)

According to a book about the FAA’s response to the 9/11 attacks, Cleveland Center air traffic controllers follow Flight 93 as it turns south and reverses course (see (9:36 a.m.) September 11, 2001). But, “bomb threats called in concerning four other planes focused their attention onto what they believed to be more critical maneuvers.” (Freni 2003, pp. 40) One of these four planes is presumably Delta Flight 1989, which is mistakenly thought to be hijacked and to have a bomb aboard (see (9:28 a.m.-9:33 a.m.) September 11, 2001). (O'Mara 9/11/2006) The identities of the other three planes are unknown. By this time, Cleveland Center has already overheard a radio transmission from Flight 93 stating, “We have a bomb on board” (see (9:32 a.m.) September 11, 2001), and has acknowledged this, reporting, “United 93 may have a bomb on board,” so it seems unlikely that other threatened aircraft would be regarded as “more critical maneuvers.” (9/11 Commission 6/17/2004)

Michael Miller.Michael Miller. [Source: US Navy]A number of White House staffers who are visiting New York make their way back to Washington, DC, following the attack on the Pentagon. About 15 members of the White House staff, including Joseph Hagin, the deputy chief of staff for operations, and Captain Michael Miller, the deputy director of the White House Military Office, are in New York conducting the “survey trip” for President Bush’s appearance at the United Nations General Assembly later in the month (see September 10, 2001).
Staffers Learn of Crashes while Visiting US Mission to the UN - Earlier this morning, they went to the US Mission to the United Nations for some preliminary meetings with the mission staff about the president’s forthcoming visit. In a conference room there, shortly after Flight 11 hit the World Trade Center (see 8:46 a.m. September 11, 2001), Miller informed Hagin of the crash. After seeing the early coverage of the incident on television, Hagin called the military aide who is with the president in Sarasota, Florida, to check if he was aware of what had happened. The military aide told him, “We’re on it.”
Staffers Taken to Police Station - After the White House staffers watched the second plane hitting the WTC live on TV, a State Department security officer told Hagin: “Sir, you need to get out of here as quickly as possible. There are reports of other planes inbound into the city.” The White House staffers were then taken by the Secret Service to a police station in Midtown Manhattan, where it was thought they would be safe. From there, Hagin called Josh Bolten, the deputy White House chief of staff for policy, who is at the White House. As the attacks were considered to be “just a New York incident” at that time, Hagin will later recall, Bolten and his colleagues decided that Hagin “should go down and be with the mayor, and… be the federal face in New York for the time being.”
Some Staffers Fly toward Nebraska to Meet President - The New York City police and the Secret Service had been trying to work out how to get Hagin to Ground Zero. But when the Pentagon is attacked at 9:37 a.m. (see 9:37 a.m. September 11, 2001), they decide that the White House staffers should return to Washington. The staffers are driven to Dover Air Force Base in Delaware. There, they are split up. Eight of them, including Hagin, get on a military plane and head toward Offutt Air Force Base in Nebraska to meet the president, who has been taken to the base (see 2:50 p.m. September 11, 2001). However, as they are flying over Missouri, they learn that Bush has decided to come back to Washington (see (4:00 p.m.) September 11, 2001 and (4:33 p.m.) September 11, 2001). Therefore, their plane turns around and heads to the capital.
Hagin and Other Staffers Return to White House - After they land at Andrews Air Force Base, just outside Washington, the staffers are driven to the White House. The time when they arrive there is unstated, but it is presumably around late afternoon or early evening. At the White House, Hagin goes to work immediately. (National Journal 8/31/2002; Wilkinson 1/20/2003) As the deputy chief of staff for operations, he is a key member of the White House staff. He is responsible for the management and administrative functions of the White House, plans all of the president’s travel, and oversees the president’s schedule. (Korte 10/10/2002; Abramowitz 7/4/2008) Hagin will recall that, after reaching the White House, he is “very involved in the continuity of government and just how, operationally, we were going to deal with this.” He will remain at the White House for the next two days. (National Journal 8/31/2002; Wilkinson 1/20/2003)

Stacia Rountree.Stacia Rountree. [Source: Vanity Fair]Colin Scoggins, the military liaison at the FAA’s Boston Center, contacts NORAD’s Northeast Air Defense Sector (NEADS) and incorrectly notifies it that another aircraft, Delta Air Lines Flight 1989, is a possible hijacking. (9/11 Commission 2004; Bronner 8/1/2006) Boston Center previously called NEADS at 9:27 and said that Delta 1989 was missing (see 9:27 a.m. September 11, 2001). (North American Aerospace Defense Command 9/11/2001; 9/11 Commission 5/23/2003)
NEADS Technicians Respond - At NEADS, Stacia Rountree, the ID technician who takes Scoggins’s call, announces to her colleagues: “Delta ‘89, that’s the hijack. They think it’s possible hijack.… South of Cleveland.” The plane’s transponder is still on, and she adds, “We have a code on him now.” Rountree’s team leader, Master Sergeant Maureen Dooley, instructs: “Pick it up! Find it!” The NEADS technicians quickly locate Delta 1989 on their radar screens, just south of Toledo, Ohio, and start alerting other FAA centers to it. (Bronner 8/1/2006; Spencer 2008, pp. 177) NEADS mission crew commander Major Kevin Nasypany will be notified by his staff of the suspected hijacking at about 9:41 or 9:42 a.m. (9/11 Commission 1/22/2004 pdf file) NEADS never loses track of Delta 1989. It will follow it on radar as it reverses course over Toledo, heads east, and then lands in Cleveland (see (10:18 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 28) It will order Air National Guard fighter jets from Selfridge and Toledo to intercept the flight (see (9:55 a.m.) September 11, 2001 and 10:01 a.m. September 11, 2001). (Spencer 2008, pp. 178-179) But it will soon learn that Delta 1989 is not in fact hijacked. (9/11 Commission 7/24/2004, pp. 28)
Cleveland Center, Not Boston, Handling Delta 1989 - Although Boston Center notifies NEADS of the suspected hijacking, Delta 1989 is in fact being handled by the FAA’s Cleveland Center. (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 10-12) Cleveland Center air traffic controllers suspected that Delta 1989 had been hijacked at around 9:30 a.m. (see (9:28 a.m.-9:33 a.m.) September 11, 2001), but apparently only informed the FAA’s Command Center, and not NEADS, of this. (Adams, Levin, and Morrison 8/13/2002) To explain why Boston Center alerts NEADS to the flight, the 9/11 Commission will later comment that, “Remembering the ‘we have some planes’ remark” (see 8:24 a.m. September 11, 2001), the Boston Center simply “guessed that Delta 1989 might also be hijacked.”
Similar to First Two Hijacked Planes - Like Flights 11 and 175, the two aircraft that have crashed into the World Trade Center (see 8:46 a.m. September 11, 2001 and 9:03 a.m. September 11, 2001), Delta 1989 took off from Boston’s Logan Airport. (9/11 Commission 7/24/2004, pp. 27-28) According to the New York Times, it left there at about the same time as Flights 11 and 175 did, meaning around 8:00 to 8:15 a.m. (Wald and van Natta 10/18/2001; 9/11 Commission 7/24/2004, pp. 32) Like those two aircraft, it is a Boeing 767. (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 27-28) But, unlike those flights, its transponder has not been turned off, and so it is still transmitting a beacon code. (9/11 Commission 7/24/2004, pp. 28; Bronner 8/1/2006) It is unclear what Delta 1989’s intended destination is. According to some accounts, like Flights 11 and 175 were, it is bound for Los Angeles. (Singer 9/11/2001; Wald and van Natta 10/18/2001; Adams, Levin, and Morrison 8/13/2002; Velez 9/24/2007; Spencer 2008, pp. 167) Other accounts will say that its destination is Las Vegas. (9/11 Commission 7/24/2004, pp. 28; Bronner 8/1/2006) Personnel at NEADS are apparently informed that Las Vegas is the intended destination. Around this time, one member of staff there tells her colleagues that the flight is “supposed to go to Vegas.” (North American Aerospace Defense Command 9/11/2001)
One of Numerous Incorrect Reports - The 9/11 Commission will comment: “During the course of the morning, there were multiple erroneous reports of hijacked aircraft (see (9:09 a.m. and After) September 11, 2001). The report of American 11 heading south was the first (see 9:21 a.m. September 11, 2001); Delta 1989 was the second.” (9/11 Commission 7/24/2004, pp. 28)

The FAA’s Cleveland Center notifies the FAA’s Great Lakes Regional Operations Center about the screams and statements it heard from an unknown origin, but that are believed to have come from Flight 93. These transmissions were heard between 9:28 and 9:39 (see (9:28 a.m.) September 11, 2001, (9:32 a.m.) September 11, 2001 and (9:39 a.m.) September 11, 2001). (Federal Aviation Administration 9/17/2001 pdf file) The FAA’s Herndon Command Center and Washington headquarters were alerted to Flight 93 several minutes earlier (see 9:34 a.m. September 11, 2001). (9/11 Commission 8/26/2004, pp. 39)

After learning that Delta flight 1989 may have been hijacked from Boston flight control (see 9:39 a.m. September 11, 2001), NEADS calls Cleveland flight control, which is handling the flight, to discuss this. (9/11 Commission 7/24/2004, pp. 14) Although Cleveland flight control has been aware that United 93 has been hijacked since before 9:30, it apparently fails to mention this to NEADS. According to the 9/11 Commission, the NMCC is not notified of United 93’s hijacking until 10:03 (see 10:03 a.m. September 11, 2001).

The Delta Air Lines operations control center in Atlanta, Georgia.The Delta Air Lines operations control center in Atlanta, Georgia. [Source: Public domain]Delta Air Lines instructs one of its aircraft, Flight 1989, to land at Cleveland Hopkins Airport, but the FAA’s Cleveland Center, which is handling the aircraft, is not notified of this. (Adams, Levin, and Morrison 8/13/2002; Kropko 8/15/2002)
Pilots Instructed to Land - The pilots of Delta 1989 receive an ACARS text message from their airline’s dispatch office in Atlanta, Georgia, instructing them to “Land immediately in Cleveland.” (Spencer 2008, pp. 167) According to USA Today, “Since early reports that a bomb, then hijackers, might be aboard” Delta 1989, Delta Air Lines’ headquarters in Atlanta has been tracking the flight, and receiving reports on it every five minutes. (Adams, Levin, and Morrison 8/13/2002) The plane’s pilot, Captain Paul Werner, quickly types a response to the message, “ok.” But, a couple of minutes later, he receives another ACARS message from the airline. It says: “Confirm landing in Cleveland. Use correct phraseology.” Werner and First Officer David Dunlap are puzzled. According to author Lynn Spencer: “There’s such a thing as correct phraseology on the radio, but there is no such thing when typing back and forth with dispatch on ACARS. Those messages are usually casual.” Werner carefully types a response: “Roger. Affirmative. Delta 1989 is diverting to Cleveland.” He calls the Cleveland Center at 9:44 a.m. and requests a diversion to Cleveland Airport. (Spencer 2008, pp. 167-168; Levin 9/11/2008)
Cleveland Center Not Informed - About 15 minutes earlier, Cleveland Center heard the sounds from Flight 93 as it was being hijacked, but initially thought these came from Delta 1989, and mistakenly believed the Delta flight was being taken over (see (9:28 a.m.-9:33 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002) But the Delta pilots’ normal responses to radio transmissions soon led air traffic controller John Werth, who is handling Delta 1989, to conclude that this aircraft was fine. (Levin 9/11/2008) However, controllers at the Cleveland Center are unaware that Delta Air Lines has instructed Flight 1989 to land, and so Werner’s request for a change of course will make them suspicious of it again (see (Shortly After 9:44 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002)

Donald Cook.Donald Cook. [Source: US Air Force]Lieutenant General Donald Cook, acting commander of the Air Combat Command (ACC), receives a call in which he is told the White House wants to know how quickly the Predator drone, a remotely controlled, unmanned plane, can be deployed over Afghanistan. Cook, who is currently at ACC headquarters at Langley Air Force Base, Virginia, receives the call “less than one hour after” the first hijacked plane crashed into the World Trade Center (see 8:46 a.m. September 11, 2001), according to journalist and author Richard Whittle, which means the call is made before around 9:45 a.m. The caller, Whittle will write, says that the “White House [wants] to know how soon the Air Force could get three Predators over Afghanistan—with missiles under their wings.” The identity of the caller is unstated. Later this morning, Cook will talk to Colonel Ed Boyle, director of intelligence for the ACC, who is away in Arizona, and pass on this information to him (see (After 10:00 a.m.) September 11, 2001). (Whittle 2014, pp. 236; Whittle 3/2015) The first Predator mission over Afghanistan will take place on September 18 and on October 7, the first day of the war in Afghanistan, the first armed Predator mission will be flown (see September 18-October 7, 2001 and October 7, 2001). (9/11 Commission 3/24/2004 pdf file; Grimes 2014, pp. 335)

Having earlier concluded that it was not hijacked, air traffic controllers at the FAA’s Cleveland Center again become suspicious of Delta Air Lines Flight 1989, after its pilot requests a change of course and then fails to respond to a message.
Pilot Requests Diversion - Cleveland Center controllers initially thought the sounds from Flight 93 as it was being hijacked had come from Delta 1989, but soon decided they had come from Flight 93 (see (9:28 a.m.-9:33 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002) However, without notifying the Cleveland Center, Delta Air Lines has just instructed Delta 1989 to land at Cleveland Hopkins Airport (see (9:42 a.m.) September 11, 2001). After the plane’s pilot, Captain Paul Werner, calls the Cleveland Center at 9:44 a.m., requesting an immediate diversion, controllers there become suspicious. (Spencer 2008, pp. 167-168; Levin 9/11/2008)
Supervisor Reports Concerns over Teleconference - USA Today will later describe: “The Delta flight wants to land in Cleveland? And the captain’s request comes before he can know that the FAA wants every flight down. On this day, the fact that the pilot requests to be rerouted before he is ordered to land seems suspicious. Why the urgency? Controllers don’t know that Delta officials, also concerned about the flight, have ordered Werner to land in Cleveland.” After Delta 1989 makes an abrupt 30-degree turn back toward Cleveland Airport, a supervisor at the Cleveland Center announces the apparently suspicious development on an FAA teleconference.
Coded Message Confirms No Hijacking - As Delta 1989 begins its descent toward Cleveland, a Cleveland Center controller radios Werner with a coded message to check whether his plane has been hijacked. The controller says, “Delta 1989, I hear you’re ‘late’ today.” (The controller is using the code word for a hijack, which has been replaced with the word ‘late’ in subsequent accounts of this incident, for security reasons. Pilots can use this code word to alert controllers to their situation if they are unable to do so openly because hijackers are in the cockpit.) Werner reassures the controller that all is okay, saying: “Negative. Delta 1989 is not a ‘late.’”
Lack of Response Causes More Suspicion - Then, as the plane descends, it receives another message from the Cleveland Center. But Werner, who is busy, fails to respond to it. This arouses further suspicion. According to USA Today: “On the ground, controllers in Cleveland Center grow alarmed. Why didn’t he respond? Have both jets—the United [Flight 93] and the Delta flights—been hijacked?” (Adams, Levin, and Morrison 8/13/2002; Spencer 2008, pp. 168-169)

Leo Mullin.Leo Mullin. [Source: Publicity photo]Leo Mullin, the CEO of Delta Air Lines, calls FAA Administrator Jane Garvey at FAA headquarters in Washington, DC, and reports that four Delta aircraft are missing. Mullin, who is at his company’s headquarters in Atlanta, Georgia, tells Garvey: “We can’t find four of our planes. Four of our transponders are off.” (Adams, Levin, and Morrison 8/13/2002; Spencer 2008, pp. 186) The identities of these aircraft are unstated. Whether they include Delta Flight 1989, which FAA air traffic controllers have mistakenly reported as being a possible hijacking (see (9:28 a.m.-9:33 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001), is unclear. At 9:27 a.m., the FAA’s Boston Center reported that this plane was missing (see 9:27 a.m. September 11, 2001). (North American Aerospace Defense Command 9/11/2001; 9/11 Commission 5/23/2003) But, according to the 9/11 Commission, Delta 1989 “never turned off its transponder.” (9/11 Commission 7/24/2004, pp. 28) USA Today will report that, after “early reports that a bomb, then hijackers, might be aboard, Delta CEO Leo Mullin, 58, had nervously tracked [Delta 1989] from the company’s headquarters in Atlanta. Every five minutes, a new report came in. None seemed clear.” (Adams, Levin, and Morrison 8/13/2002)

Air Force One departs Sarasota.Air Force One departs Sarasota. [Source: Associated Press]Air Force One takes off from off from Sarasota-Bradenton International Airport in Florida with President Bush on board. (Keen and Carney 9/11/2001; Balz and Woodward 1/27/2002; 9/11 Commission 7/24/2004, pp. 39) The plane takes off without any fighter jets protecting it. “The object seemed to be simply to get the president airborne and out of the way,” an administration official will later say. (Langley 12/16/2001) There are still 3,520 planes in the air over the US. (Adams, Levin, and Morrison 8/13/2002) About half of the planes in the Florida region where Bush’s plane is are still airborne. (Heller 9/7/2002) Apparently, fighters don’t meet up with Air Force One until over an hour and a half later (see (11:29 a.m.) September 11, 2001). Counterterrorism “tsar” Richard Clarke will claim to have heard at around 9:50 a.m. from the White House bunker containing Vice President Dick Cheney that a fighter escort had been authorized. (Clarke 2004, pp. 8-9)

F-16 Fighting Falcons from the 127th Wing at Selfridge Air National Guard Base.F-16 Fighting Falcons from the 127th Wing at Selfridge Air National Guard Base. [Source: John S. Swanson / US Air Force]NORAD’s Northeast Air Defense Sector (NEADS) contacts Selfridge Air National Guard Base in Michigan to arrange for two of its F-16 fighter jets that are out on a training mission to intercept a suspicious aircraft. Accounts will conflict over whether this aircraft is Flight 93 or Delta Air Lines Flight 1989, which is wrongly thought to have been hijacked. (Associated Press 8/30/2002; ABC News 9/11/2002; Bronner 8/1/2006; Spencer 2008, pp. 178) Delta 1989 was flying about 25 miles behind Flight 93 when air traffic controllers mistakenly suspected it might be hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001), and since then it has been instructed to land at Cleveland Hopkins Airport in Ohio (see (9:42 a.m.) September 11, 2001). (Adams, Levin, and Morrison 8/13/2002; Levin 9/11/2008) Flight 93 is currently flying east across Pennsylvania. (National Transportation Safety Board 2/19/2002 pdf file) NEADS has already tried getting fighter jets from a unit in Duluth, Minnesota, sent after Delta 1989, but the unit was unable to respond (see (Shortly After 9:41 a.m.) September 11, 2001). (9/11 Commission 1/22/2004 pdf file; 9/11 Commission 1/23/2004 pdf file)
NEADS Calls Selfridge Base - A NEADS weapons technician now calls the 127th Wing at Selfridge Air National Guard Base. He knows the unit has two F-16s in the air on a training mission. Although these jets are unarmed and only have a limited amount of fuel remaining, the commander at the Selfridge base agrees to turn them over to NEADS. (Spencer 2008, pp. 178) The commander says: “[H]ere’s what we can do. At a minimum, we can keep our guys airborne. I mean, they don’t have—they don’t have any guns or missiles or anything on board.” The NEADS technician replies, “It’s a presence, though.” (Bronner 8/1/2006)
Fighters May Have to Crash into Hijacked Plane - Military commanders realize that, without weapons, the Selfridge fighter pilots might have to slam their jets into a hijacked plane to stop it in its tracks. Colonel Robert Marr, the NEADS battle commander, will later reflect, “As a military man, there are times that you have to make sacrifices that you have to make.” (Raddatz 8/30/2002; ABC News 9/11/2002) However, the Selfridge jets never have to intercept either of the two suspect aircraft, and instead are able to head back to base. (Filson 2003, pp. 70; Carroll 9/2006 pdf file)
Selfridge Called due to Concerns about Delta 1989? - According to author Lynn Spencer, the NEADS weapons technician’s call to the Selfridge unit is made in response to a report NEADS received about the possible hijacking of Delta 1989 (see 9:39 a.m. September 11, 2001). (Spencer 2008, pp. 178) Vanity Fair magazine and the 9/11 Commission will also say NEADS calls the Selfridge unit in response to this report about Delta 1989. (9/11 Commission 7/24/2004, pp. 28; Bronner 8/1/2006)
NORAD Commander Gives Different Account - However, Larry Arnold, the commander of the Continental United States NORAD Region, will suggest the Selfridge unit is called due to concerns about both Delta 1989 and Flight 93. He will say: “We were concerned about Flight 93 and this Delta aircraft [Flight 1989] and were trying to find aircraft in the vicinity to help out. We didn’t know where it was going to go. We were concerned about Detroit… and the fighters up there were out of gas with no armament.” (Filson 2003, pp. 71)
NEADS Commander Claims Fighters Sent toward Flight 93 - Robert Marr will give another different account. He will claim that NEADS contacts the Selfridge base solely because of its concerns over Flight 93. He tells author Leslie Filson that before Flight 93 reversed course and headed back east (see (9:36 a.m.) September 11, 2001), NEADS thought it was “headed toward Detroit or Chicago. I’m thinking Chicago is the target and know that Selfridge Air National Guard Base has F-16s in the air.” NEADS contacts “them so they could head off 93 at the pass.” (Filson 2003, pp. 68) Marr will tell the 9/11 Commission that the Selfridge F-16s are going to be “too far from Cleveland to do any good,” and so he believes NEADS directs them to intercept Flight 93. (9/11 Commission 1/23/2004 pdf file) (Presumably, he means the jets cannot be responding to Delta 1989, which has been told to land in Cleveland (Levin 9/11/2008) )
9/11 Commission Disputes Arnold's and Marr's Accounts - The 9/11 Commission will reject Arnold’s and Marr’s accounts. It will state, “The record demonstrates, however, that… the military never saw Flight 93 at all” before it crashes, and conclude, “The Selfridge base was contacted by NEADS not regarding Flight 93, but in response to another commercial aircraft in the area that was reported hijacked (Delta Flight 1989, which ultimately was resolved as not hijacked).” (9/11 Commission 8/26/2004, pp. 101) Lt. Col. Doug Champagne, the pilot of one of the Selfridge F-16s, will recall that “he and his colleague never received orders to intercept [Flight 93] in any way.” (Casey 9/6/2006) Reports based on interviews with the two Selfridge pilots will make no mention of the jets being directed to intercept Delta 1989 either (see (9:56 a.m.-10:29 a.m.) September 11, 2001). (Filson 2003, pp. 68-70; Carroll 9/2006 pdf file; Casey 9/6/2006)

Douglas Champagne.Douglas Champagne. [Source: David Kujawa / US Air Force]Although NORAD’s Northeast Air Defense Sector (NEADS) has contacted Selfridge Air National Guard Base in Michigan, reportedly to arrange that two of its F-16s be diverted from a training mission to intercept either Flight 93 or Delta Air Lines Flight 1989 (accounts conflict over which aircraft is concerned), the pilots of those jets apparently never receive an order to intercept a plane, and so return directly to their base. (Filson 2003, pp. 68, 71; Carroll 9/2006 pdf file; Casey 9/6/2006; Spencer 2008, pp. 178) However, some accounts will claim the pilots are indeed ordered to intercept the suspect aircraft. (Raddatz 8/30/2002; Associated Press 8/30/2002; Baker 3/27/2005; Spencer 2008, pp. 188)
Jets Returning from Training Mission - The F-16s, piloted by Lieutenant Colonel Tom Froling and Major Douglas Champagne of the 127th Wing, had taken off from Selfridge Air National Guard Base at around 8:50 a.m. for a routine training mission at Grayling Range in central northern Michigan. The two pilots were oblivious to the attacks taking place in New York and Washington. (Filson 2003, pp. 68; GlobalSecurity (.org) 4/26/2005; Carroll 9/2006 pdf file) When they started heading back to Selfridge after completing their training mission, they began hearing “unusual radio traffic” as air traffic controllers began diverting flights from their original destinations. (Casey 9/6/2006)
Pilots Learn of Plane Hitting Pentagon - Froling will later recall: “Something strange was occurring and I couldn’t put my finger on what was happening. I could hear [the FAA’s] Cleveland Center talking to the airlines and I started putting things together and knew something was up.” (Filson 2003, pp. 68-70) Champagne hears an air traffic controller stating that a plane has crashed at the Pentagon. He then hears the Cleveland Center announcing a “demon watch,” which means pilots have to contact their operations center for more information.
Commander Asks if Pilots Have Used up Their Ammunition - When Champagne calls the Selfridge base, his operations group commander, General Michael Peplinski, wants to know if he and Froling have used up their ammunition during the training mission. Champagne will recall: “[Peplinski] asked if we had expended all our munitions and specifically asked if we had strafed. We replied that all ordnance was gone. I assumed we had strafed without clearance and had injured someone down range. We had no idea what was happening on the Eastern seaboard.” (Carroll 9/2006 pdf file; Casey 9/6/2006)
Pilots Directed to Return to Base - According to author Lynn Spencer, because a commander with the 127th Wing agreed to turn the two F-16s over to NEADS (see (9:55 a.m.) September 11, 2001), Champagne and Froling are instructed to call NEADS. When they do so, they are ordered to intercept Delta 1989. (Spencer 2008, pp. 178, 180, 188) But according to other accounts, they are “ordered south in case United Airlines 93 was targeting Chicago.” (ABC News 9/11/2002; Baker 3/27/2005) However, according to two reports based on interviews with Champagne, Peplinski only instructs the two pilots to return to their base and land on its auxiliary runway.
Pilots Apparently Not Ordered to Intercept Aircraft - Accounts based on interviews with the pilots will make no mention of the jets being directed to intercept Delta 1989 or Flight 93. According to Champagne, the air traffic controller’s announcement that an aircraft hit the Pentagon “was the only indication we received that other aircraft and buildings were involved.” Champagne will say that “he and his colleague never received orders to intercept [Flight 93] in any way.” The two pilots “had no ammunition… and only an hour’s worth of fuel remaining. And as they approached Selfridge amid the puzzling radio transmissions, they still were oblivious to what was transpiring.” (Filson 2003, pp. 68-70; Carroll 9/2006 pdf file; Casey 9/6/2006)
Jets Land at Base - The two F-16s land back at Selfridge Air National Guard Base at 10:29 a.m. (9/11 Commission 10/27/2003 pdf file) As Champagne pulls in his aircraft, his friend Captain Sean Campbell approaches and mouths the words to him: “It’s bad. It’s really, really bad.” (Carroll 9/2006 pdf file; Casey 9/6/2006)

The South Tower of the World Trade Center collapses.The South Tower of the World Trade Center collapses. [Source: Associated Press]The South Tower of the World Trade Center tilts to the southeast and then collapses. It was hit by Flight 175 at 9:03 a.m., 56 minutes earlier (see 9:03 a.m. September 11, 2001). (Washington Post 9/12/2001; New York Times 9/12/2001; MSNBC 9/22/2001; Cauchon 12/20/2001; Associated Press 8/21/2002; ABC News 9/11/2002; National Institute of Standards and Technology 9/2005, pp. 44) The first sign of the collapse is visible on floor 82. (National Institute of Standards and Technology 9/2005, pp. 87) The angle of the tilt will be disputed after 9/11 (see September-November 2005), as will the time it takes the towers to fall to the ground (see September 12, 2001-September 2005). (Ashley 10/9/2001; Eagar and Musso 12/2001; PBS Nova 5/2002; National Institute of Standards and Technology 8/30/2006)

Twenty minutes after the 9/11 attacks in New York (see 8:46 a.m. September 11, 2001 and 9:03 a.m. September 11, 2001) and Washington (see 9:37 a.m. September 11, 2001), a bomb truck is stationed in downtown Oklahoma City, in preparation for any potential bombing related to the 1995 Oklahoma City bombing (see 8:35 a.m. - 9:02 a.m. April 19, 1995). Additionally, an Oklahoma County Sheriff’s Department command post is activated where convicted bombing conspirator Terry Nichols (see September 5, 2001) is being held. (The Oklahoman 4/2009)

NORAD’s Northeast Air Defense Sector (NEADS) contacts an Air National Guard unit in Toledo, Ohio, and requests that it launch two fighter jets in response to the attacks. (WTOL 9/11/2006; Lynn Spencer 2008; Spencer 2008, pp. 178)
First Time that Unit Has Answered a NORAD Request - The 180th Fighter Wing of the Ohio Air National Guard is based at Toledo Express Airport. It has 20 F-16 fighter jets and about three dozen pilots. (Sallah and Mahr 12/9/2001) Its “primary mission” is “to provide combat ready F-16C and support units capable of deploying worldwide in minimum response time.” (180th Fighter Wing 9/19/2001; GlobalSecurity (.org.) 10/21/2001) The unit is not one of NORAD’s seven alert facilities around the US, and this is believed to be the first time it has ever answered a request for help from NORAD. (McKenna 12/1999; Sallah and Mahr 12/9/2001)
Call due to Concern over Delta 1989 - According to author Lynn Spencer, a weapons technician at NEADS makes the call to the 180th FW due to concerns about Delta Air Lines Flight 1989, which is incorrectly thought to have been hijacked (see 9:39 a.m. September 11, 2001). (Spencer 2008, pp. 177-178) NEADS has already contacted units in Minnesota and Michigan about this aircraft (see (Shortly After 9:41 a.m.) September 11, 2001 and (9:55 a.m.) September 11, 2001). (9/11 Commission 1/23/2004 pdf file; Bronner 8/1/2006) The weapons technician calls the Toledo unit after Master Sergeant Joe McCain gives an update across the NEADS operations floor: “Delta [19]89! Hard right turn!” According to Spencer, the weapons technician knows the 180th FW is much better positioned than the Selfridge unit’s fighters are to reach Delta 1989. (Spencer 2008, pp. 178)
NORAD Commander Gives Different Explanation - But according to Larry Arnold, the commander of the Continental United States NORAD Region, the weapons technician’s call might also be in response to concerns over Flight 93. Arnold will say that NEADS calls the 180th FW “because we thought [Flight] 93 or Delta Flight 1989 might be headed toward Chicago.” (Filson 2003, pp. 71) Two Toledo pilots who initially answer the call from NEADS appear to believe the call is a joke, but their wing commander then picks up the line and responds appropriately (see 10:01 a.m. September 11, 2001). (Spencer 2008, pp. 178-179)
Unit Prepared for Crisis Like This - Although it is not one of NORAD’s alert facilities, Lt. Col. Gary Chudzinski, a former commander of the 180th FW, will later comment that the Toledo unit has always been aware that it could be alerted to crises such as the current one, “but you just don’t expect it.” According to General Paul Sullivan, who heads all Ohio Air National Guard units, the 180th FW’s pilots practice “air interception,” but a typical mission focuses on either a plane ferrying drugs or enemy fighters approaching America’s coasts. (McKenna 12/1999; Sallah and Mahr 12/9/2001) Two 180th FW jets will take off from the Toledo unit at 10:17 a.m. (see 10:17 a.m. September 11, 2001). (Sallah and Mahr 12/9/2001; WTOL 9/11/2006)

Roger Cressey.Roger Cressey. [Source: Publicity photo]Roger Cressey, the deputy for counterterrorism on the National Security Council, suggests activating the Emergency Alert System (EAS) to address the nation, but no one with him knows what could be said to calm the public. (Graff 2017, pp. 341) Cressey is one of about a dozen people who remained in the White House Situation Room after most staffers evacuated from the White House (see (Shortly After 9:45 a.m.) September 11, 2001). (Clarke 2004, pp. 10; Gardham 9/10/2010) Apparently sometime shortly after Ralph Seigler, the Situation Room deputy director, reported that the Secret Service was saying a hostile aircraft was approaching Washington, DC (see (After 10:06 a.m.) September 11, 2001), Cressey proposes to his colleagues that they activate the EAS to give a message to the American public. However, Richard Clarke, the White House counterterrorism chief, promptly rejects his suggestion. “And have them say what?” Clarke asks. (Clarke 2004, pp. 9)
Alert System Is Not Used in Response to Today's Attacks - The EAS, known as the Emergency Broadcast System until the 1990s, was created in 1951 as part of America’s response to the threat of nuclear attack. It serves as a tool for the president and others to warn the American public about emergency situations. However, it is not activated at any point today in response to the terrorist attacks. Richard Rudman, chairman of the EAS National Advisory Committee, will later justify this, explaining that the EAS is intended to alert the public to the danger before an incident occurs, not afterward. “Some events really do serve as their own alerts and warnings,” he will comment. Referring to today’s attacks, he will say, “With the immediate live media coverage, the need for an EAS warning was lessened.” One broadcast engineer will say that activating the EAS after the first hijacked plane crashed into the World Trade Center (see 8:46 a.m. September 11, 2001) might have caused more harm than good. “At that point, it could have stirred up even more panic,” the engineer will say. (Stine 9/26/2001; Moore 8/13/2004, pp. 1 pdf file)

The military liaison at the FAA’s Cleveland Center calls NORAD’s Northeast Air Defense Sector (NEADS) and alerts it to the hijacked Flight 93. According to the 9/11 Commission, this is the first notification NEADS receives about Flight 93, but it comes too late, since the plane has already crashed (see (10:06 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 30; 9/11 Commission 8/26/2004, pp. 46)
'Bomb on Board' Flight 93 - At 10:05 a.m., the military liaison at the Cleveland Center, who is unaware that Flight 93 has just crashed, calls NEADS to inform it that Flight 93 is heading toward Washington, DC. Even though communicating with NEADS is not one of his responsibilities, he wants to make sure it is in the loop. (Spencer 2008, pp. 224) At NEADS, the call is answered by Tech Sergeant Shelley Watson. Shortly into the call, at 10:07, the military liaison tells her: “We got a United 93 out here. Are you aware of that?” He continues, “That has a bomb on board.” Watson asks: “A bomb on board? And this is confirmed? You have a mode three [beacon code], sir?” The military liaison replies, “No, we lost his transponder” (see (9:40 a.m.) September 11, 2001). The news about Flight 93 is shouted out to Major Kevin Nasypany, the NEADS mission crew commander. Nasypany responds: “Gimme the call sign. Gimme the whole nine yards.… Let’s get some info, real quick. They got a bomb?”
Liaison Wants Fighters Sent toward Flight 93 - The military liaison continues, asking Watson if NEADS scrambled fighter jets in response to Delta 1989, an aircraft that was mistakenly reported as having been hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001). Watson replies: “We did. Out of Selfridge and Toledo” (see (9:55 a.m.) September 11, 2001 and 10:01 a.m. September 11, 2001), and says these jets are airborne. When the military liaison asks if the fighters can be directed to where Flight 93 is, Watson asks him if the Cleveland Center has latitude and longitude coordinates for this aircraft. The military liaison replies that he has not got this information available right now. All he knows is that Flight 93 has “got a confirmed bomb on board… and right now, his last known position was in the Westmoreland area.… Which is… in the Pittsburgh, Pennsylvania, area.” (North American Aerospace Defense Command 9/11/2001; Bronner 8/1/2006)
NEADS Searches on Radar - The news of a bomb on board Flight 93 spreads quickly at NEADS, and personnel there search for the aircraft’s primary return on their radar screens. But because the plane has already crashed, they will be unable to locate it. NEADS will only learn that Flight 93 has crashed at 10:15 a.m., during a call with the FAA’s Washington Center (see 10:15 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 30-31)
FAA Failed to Notify Military Earlier - The Cleveland Center’s notification to NEADS about Flight 93 comes 39 minutes after the plane was hijacked (see (9:28 a.m.) September 11, 2001) and 33 minutes after FAA headquarters was alerted to the hijacking (see 9:34 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 11, 28) At the time NEADS is alerted to Flight 93, NORAD is similarly uninformed about this aircraft, according to the 9/11 Commission. The Commission will state, “At 10:07, its representative on the air threat conference call stated that NORAD had ‘no indication of a hijack heading to DC at this time.’” According to the Commission, the National Military Command Center (NMCC) at the Pentagon learned about the Flight 93 hijacking slightly earlier on, at 10:03 a.m. (see 10:03 a.m. September 11, 2001). However, the NMCC was notified by the White House, not the FAA. (9/11 Commission 7/24/2004, pp. 42) A former senior FAA executive, speaking on condition of anonymity, will later try to explain why it takes the FAA so long to alert NEADS to Flight 93. He will say, “Our whole procedures prior to 9/11 were that you turned everything [regarding a hijacking] over to the FBI.” (Bronner 8/1/2006) Yet military instructions contradict this, stating, “In the event of a hijacking, the NMCC will be notified by the most expeditious means by the FAA.” (US Department of Defense 7/31/1997 pdf file; US Department of Defense 6/1/2001 pdf file)
NORAD Commanders Claim Earlier Awareness of Flight 93 - Two senior NORAD officials will contradict the 9/11 Commission’s conclusion, and claim they were aware of Flight 93 well before it crashed (see Shortly Before 9:36 a.m. September 11, 2001 and (9:36 a.m.-10:06 a.m.) September 11, 2001). (Filson 2003, pp. 68, 71-73) Colonel Robert Marr, the NEADS battle commander, will tell the Commission that, while the flight was still airborne, “his focus was on UAL 93, which was circling over Chicago,” and he “distinctly remembers watching the flight UAL 93 come west, and turn over Cleveland.” (9/11 Commission 10/27/2003 pdf file; 9/11 Commission 1/23/2004 pdf file) Major General Larry Arnold, the commander of the Continental US NORAD Region, will recall, “[W]e watched the [Flight] 93 track as it meandered around the Ohio-Pennsylvania area and started to turn south toward DC.” (Filson 2003, pp. 71)

Flight 93 crashed in the Pennsylvania countryside. Resue vehicles arrive in the distance.Flight 93 crashed in the Pennsylvania countryside. Resue vehicles arrive in the distance. [Source: Keith Srakocic/ Associated Press]Flight 93 crashes into an empty field just north of the Somerset County Airport, about 80 miles southeast of Pittsburgh, 124 miles or 15 minutes from Washington, D.C. Presumably, hijackers Ziad Jarrah, Ahmed Alhaznawi, Ahmed Alnami, Saeed Alghamdi, and all the plane’s passengers are killed instantly. (CNN 9/12/2001; North American Aerospace Defense Command 9/18/2001; Ellison 10/17/2001; Hillston 10/28/2001; Levin, Adams, and Morrison 8/12/2002; Associated Press 8/21/2002; MSNBC 9/3/2002) The point of impact is a reclaimed coal mine, known locally as the Diamond T Mine, that was reportedly abandoned in 1996. (Pittsburgh Tribune-Review 9/12/2001; Zapinski 9/12/2001; Frederick 9/11/2002) Being “reclaimed” means the earth had been excavated down to the coal seam, the coal removed, and then the earth replaced and planted over. (Kashurba 2002, pp. 121) A US Army authorized seismic study times the crash at five seconds after 10:06 a.m. (Kim and Baum 2002 pdf file; Perlman 12/9/2002) As mentioned previously, the timing of this crash is disputed and it may well occur at 10:03 a.m., 10:07 a.m., or 10:10 a.m.

Someone from the 174th Fighter Wing, which is based at Hancock Field Air National Guard Base near Syracuse, NY, calls NORAD’s Northeast Air Defense Sector (NEADS) and speaks with Major Kevin Nasypany, the mission crew commander there. (North American Aerospace Defense Command 9/11/2001) Earlier on, shortly after seeing the second plane hitting the World Trade Center at 9:03, a commander of the 174th Fighter Wing called NEADS to offer fighter jets to help (see (After 9:03 a.m.) September 11, 2001). They’d said: “Give me ten [minutes] and I can give you hot guns. Give me 30 [minutes] and I’ll have heat-seeker [missiles]. Give me an hour and I can give you slammers.” (Scott 6/3/2002; Carey 9/12/2006) Yet, now, more than an hour after the second attack, these fighters have still not been launched. Syracuse tells Nasypany, “I’ve got guys that’ll be launching in about 15 minutes.” Despite the earlier promise to have heat-seekers and slammers on the planes, Syracuse says: “We’ve got hot guns. That’s all I’ve got.” Nasypany says: “I’ve got another possible aircraft with a bomb on board. It’s in Pennsylvania, York, approximate area.” He adds that there is “another one, that’s possibly at Cleveland area.” These aircraft, he says, are United Airlines Flight 93 and Delta ‘89, respectively. (Although Flight 93 has already crashed, NEADS apparently does not learn of this until 10:15 (see 10:15 a.m. September 11, 2001).) NEADS was alerted to Delta Flight 1989 at 9:41, and mistakenly suspects it has been hijacked (see 9:39 a.m. September 11, 2001). Syracuse says: “I’ve got two jets right now. Do you need more than two?” After NEADS requests another two, Syracuse replies, “Get four set up, yep.” (North American Aerospace Defense Command 9/11/2001) According to the Syracuse Post-Standard, the first fighters to launch from Hancock Field are two F-16s that take off at 10:42 a.m. A further three take off at about 1:30 p.m., and two more launch around 3:55 p.m. (see 10:42 a.m. September 11, 2001). (Wasilewski 9/12/2001)

Dutchess County Airport.Dutchess County Airport. [Source: Phillip Capper]Tom White, a New York air traffic controller, incorrectly reports over an FAA teleconference that the first aircraft to hit the World Trade Center appears to have been a Sikorsky helicopter. (Federal Aviation Administration 9/11/2001; Federal Aviation Administration 1/2/2002; 9/11 Commission 5/21/2004) White is an operations manager at the FAA’s New York Terminal Radar Approach Control (TRACON) in Westbury, Long Island. (9/11 Commission 12/15/2003 pdf file) He says over the FAA teleconference that the Sikorsky helicopter had been heading south from Poughkeepsie, New York, and appeared to hit the WTC at 8:27 a.m. (see 8:27 a.m. September 11, 2001)—nearly 20 minutes before the first crash there actually took place (see 8:46 a.m. September 11, 2001).
TRACON Previously Said Small Plane Hit the WTC - About 20 minutes earlier, someone from the TRACON—presumably White—suggested over the teleconference that the first aircraft to hit the WTC was a small twin-engine plane. At around 9:55 a.m. they said: “I think we’ve identified the location of a departure point for aircraft number one [presumably a reference to the plane that hit the North Tower]. At approximately 12:03 Zulu time [i.e. 8:03 a.m. Eastern time], aircraft number one appears to have departed Poughkeepsie airport and established a southerly heading at a speed of about 160 knots [i.e. 184 miles per hour]. The profile looks like it might be a light twin.” Asked if they had any more information, the TRACON employee replied: “I tried to get in touch with Poughkeepsie tower. However, the phone lines are overloaded and the circuits are busy.” (Federal Aviation Administration 9/11/2001) The “Poughkeepsie airport” the helicopter took off from is presumably Dutchess County Airport. Sikorsky bases a fleet of its S-76 helicopters at Dutchess County Airport, which it dispatches to the New York metro areas as needed. (Venable 5/2000; Wagstaff 8/1/2003) Poughkeepsie is about 70 miles north of New York City. (Sherman 2/3/2008)
Radar Information Suggests Helicopter Hit WTC - White now gives an update over the FAA teleconference, and suggests the first aircraft to hit the WTC was in fact a helicopter. He says: “We tracked a Sikorsky helicopter… from Poughkeepsie to the Trade Center. It appeared to fly into the Trade Center at 12:27 [Zulu time, or 8:27 a.m. Eastern time]. That is preliminary information.” White then clarifies that this conclusion has been reached partly through replaying radar data. He says: “[T]he only target that we saw in the vicinity of the Trade Center at 12:27, to fly into the Trade Center, we, we played the radar and tracked it up through Westchester and Stewart. We had a departure off a Poughkeepsie at 12:03. The tower says the only thing they had southbound at that time was a Sikorsky helicopter, which is consistent with the speed that we followed it down.” (Federal Aviation Administration 9/11/2001; Federal Aviation Administration 9/11/2001)
Long Delay before False Information Is Corrected - The New York TRACON’s reports about a helicopter or small plane hitting the WTC are subsequently confirmed to be mistaken. However it apparently takes several hours before the erroneous information is corrected. David LaCates, the deputy operations manager at the FAA’s New York Center, will tell the 9/11 Commission that “he did hear rumors that the aircraft that struck the WTC was in fact a small airplane from Poughkeepsie,” and he “believes this rumor persisted for over an hour.” (9/11 Commission 10/2/2003 pdf file) According to one FAA chronology of this day’s events, it is only at 1:00 p.m. that the “Sikorsky helicopter” is “now believed not to have hit the WTC.” (Federal Aviation Administration 1/2/2002) Another FAA chronology will state that at 1:04 p.m. it is reported that the Sikorsky helicopter “landed 20 minutes early, normal GE run at 12:28Z [i.e. 8:28 a.m. Eastern time] to WTC.” (It is unclear what is meant by “normal GE run.”) (Federal Aviation Administration 9/11/2001)

F-16 Fighting Falcon aircraft at the 180th Fighter Wing.F-16 Fighting Falcon aircraft at the 180th Fighter Wing. [Source: Jodi Joice / US Air Force]Two F-16 fighter jets take off from a military unit in Toledo, Ohio, in response to the morning’s attacks, but accounts will conflict over what their mission is and who the pilots are. (Sallah and Mahr 12/9/2001; Filson 2003, pp. 71; WTOL 9/11/2006) The 180th Fighter Wing of the Ohio Air National Guard is based at Toledo Express Airport. Although the unit is not one of NORAD’s seven alert facilities around the US, it has recently received a call from NORAD’s Northeast Air Defense Sector (NEADS), requesting that it launch two of its fighters (see 10:01 a.m. September 11, 2001). (McKenna 12/1999; Sallah and Mahr 12/9/2001; WTOL 9/11/2006; Spencer 2008, pp. 178-179) The 180th Maintenance Squadron, which is responsible for maintaining the unit’s aircraft and equipment, was also contacted, and has loaded the F-16s’ guns with 500 rounds of 20-caliber ammunition. (180th Fighter Wing 9/19/2001; WTOL 9/11/2006)
Jets Head East - The two F-16s, which were being set up for training missions, now take off and head east. (Sallah and Mahr 12/9/2001) According to author Lynn Spencer, they are piloted by Scott Reed and Ed Rinke. (Spencer 2008, pp. 179) However, a local television station will report that the pilots are Scott Reed and Keith Newell. (WTOL 9/11/2006)
Mission Unclear - It is unclear what role the two jets play in defending the nation. Toledo Air National Guard officials will later refuse to talk about this morning’s events, even in the general terms permitted by the military. (Sallah and Mahr 12/9/2001) According to Spencer, NEADS wanted the 180th FW jets to respond to Delta Air Lines Flight 1989, which is incorrectly thought to have been hijacked and will land in Cleveland at around 10:18 (see (10:18 a.m.) September 11, 2001). The 9/11 Commission will similarly say the Toledo jets are ordered to intercept Delta 1989. (Federal Aviation Administration 9/16/2001; 9/11 Commission 7/24/2004, pp. 27-28; Spencer 2008, pp. 177-178) But Larry Arnold, the commander of the Continental United States NORAD Region, will say the 180th FW was contacted “because we thought [Flight] 93 or Delta Flight 1989 might be headed toward Chicago.” (Filson 2003, pp. 71) NEADS battle commander Colonel Robert Marr will say the two F-16s “never had a track close enough that they were directed to engage. [But] if a valid direction had come from the appropriate level to engage a target, or shoot down a target at some time, they could have done that.”
Response Is 'Very Quick' - Marr will describe the 180th FW’s response to NEADS’s request for assistance as “very, very, very quick.” (Sallah and Mahr 12/9/2001) However, the fourth hijacked aircraft, Flight 93, has already crashed by the time the two jets take off (see (10:06 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 30)

An aircraft at Cleveland Hopkins International Airport.An aircraft at Cleveland Hopkins International Airport. [Source: Cleveland Plain Dealer]Delta Air Lines Flight 1989, a Boeing 767 out of Boston that is wrongly suspected of being hijacked (see 9:39 a.m. September 11, 2001 and (Shortly After 9:44 a.m.) September 11, 2001), lands at Cleveland Hopkins Airport in Ohio, and is directed to a remote area of the airport. (Federal Aviation Administration 9/16/2001; Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 27-28; O'Mara 9/11/2006)
Plane Flies Long Path toward Airport - Delta Air Lines had been concerned about Flight 1989, and ordered it to land as soon as possible in Cleveland (see (9:42 a.m.) September 11, 2001). (Spencer 2008, pp. 167; Levin 9/11/2008) As it was heading in to land, air traffic controllers instructed Delta 1989 to follow a trajectory that initially took it far past Cleveland Airport. Unknown to the plane’s pilots, the controllers incorrectly believe the flight has been hijacked and contains a bomb, and they were therefore making time to evacuate the airport before the plane landed (see (9:50 a.m. and After) September 11, 2001). (Spencer 2008, pp. 191)
Plane Directed to Remote Area - Once Delta 1989 is on the ground, the Cleveland Terminal Radar Approach Control (TRACON) informs the FAA’s Cleveland Center that Delta 1989 is “on the ground at 1418,” where “1418” means 10:18 a.m. Cleveland Center asks, “Very safely too, I hope?” The TRACON responds that the plane is being taken to the bomb area to check. (Federal Aviation Administration 9/16/2001) Delta 1989 is directed to “taxi left onto taxiway Bravo and wait there.” This taxiway leads to a remote part of the airport that is far away from the terminal. The pilot does as instructed. (Spencer 2008, pp. 229)
Passengers Not Allowed Off - The pilots radio the airport’s air traffic control tower and say: “Just to make sure we don’t have any misunderstandings here, our flaps are up, we are landing only as a precaution at the company’s request. You understand that?” They ask if they are going to get to their gate soon, but the controller responds that city authorities are in charge and he believes people will be coming to search the aircraft. The controller advises that city authorities have said to keep the plane’s passengers on the aircraft for now. (Federal Aviation Administration 9/16/2001) The passengers and crew will have to remain on board for perhaps a couple of hours, until FBI agents allow them off (see 11:28 a.m.-12:23 p.m. September 11, 2001). (O'Mara 9/11/2006; Spencer 2008, pp. 270-271)
Conflicting Reports of Landing Time - Subsequent accounts will give conflicting times for when Delta 1989 lands at Cleveland Airport. According to a detailed timeline provided by the airport’s control tower, the aircraft is “on the ground” at 10:18 a.m. (Federal Aviation Administration 9/16/2001) Several accounts will give similar landing times of between 10:05 a.m. and 10:10 a.m. (Federal Aviation Administration 1/2/2002; Adams, Levin, and Morrison 8/13/2002) But a NORAD official will tell the 9/11 Commission that Delta 1989 landed at 9:47 a.m. (9/11 Commission 5/23/2003) Other accounts will say it lands at between 10:33 a.m. and 10:45 a.m. (Singer 9/11/2001; Singer 9/11/2001; Federal Aviation Administration 9/17/2001 pdf file)

Personnel in the White House Situation Room learn of a plane supposedly flying toward the United States from Europe that appears to be hijacked, but it is subsequently determined that the alleged flight does not exist. Those in the Situation Room receive word confirming that a suspicious Northwest Airlines flight from Portugal to Philadelphia is heading toward Washington, DC. The plane is not responding to radio calls and its transponder is squawking the code for a hijacking. White House counterterrorism chief Richard Clarke gives orders for someone to find out more about the flight and what assets the US military has available to intercept it at the coast. Meanwhile, the FAA searches its data for information about the flight and officials try to contact Northwest Airlines to find out more. Those participating in Clarke’s video teleconference (see (9:10 a.m.) September 11, 2001 and 9:25 a.m. September 11, 2001) grow increasingly anxious, since no action can be taken until more details about the flight are found. Then Timothy Flanigan, the deputy White House counsel, who is in the Situation Room, has an idea. He leaves the room and finds an unsecure computer. On this, he searches travel websites for details of the suspicious flight, but finds nothing. He then checks on the Northwest Airlines website and again finds no reference to the flight. He quickly jots down everything he can find about Northwest Airlines flights from Europe and then goes to pass on his findings. After taking a seat at the conference table, he addresses Clarke, who is still searching for information about the plane. “I’ve checked and there’s no such flight,” he says. Astonished at this news, Clarke asks, “How did you check?” “I looked on their website,” Flanigan replies. Clarke then passes on the news to the other participants in the video teleconference. “I have information that there is no such flight,” he says and adds, “Check that again.” (Eichenwald 2012, pp. 36-37) The 9/11 Commission Report will later note that there are “multiple erroneous reports of hijacked aircraft” this morning (see (9:09 a.m. and After) September 11, 2001). (9/11 Commission 7/24/2004, pp. 28)

Two F-16 fighters take off from Hancock Field Air National Guard Base, near Syracuse, NY. The fighters belong to the 174th Fighter Wing, a unit of the New York Air National Guard. A commander from Syracuse had called NORAD’s Northeast Air Defense Sector (NEADS) offering to help earlier in the morning (see (After 9:03 a.m.) September 11, 2001). Although at that time they’d promised: “Give me 30 minutes and I’ll have heat-seeker [missiles]. Give me an hour and I can give you slammers,” the fighters now launching have bullets but no missiles. (Wasilewski 9/12/2001; Scott 6/3/2002; Kirst 10/18/2002) The Hancock pilots are ordered to “Identify all aircraft… Intercept them. Tell them to land. ‘Engage’ them if they [don’t].” (Wasilewski 9/25/2001) Also at some time this morning, following the attacks, 174th FW officials form a command center to monitor the situation across the US. (Ramirez and Wasilewski 9/11/2001; Wasilewski 9/12/2001) A hundred of the 174th FW’s staff have spent the last month deployed to Saudi Arabia and are due back this afternoon. However, they are diverted to Canada and arrive back at the base later in the week (see Mid-August-September 11, 2001).

United Airlines issues a press release confirming that Flight 93 has crashed. Flight 93 went down in Pennsylvania shortly after 10:00 a.m. (see (10:06 a.m.) September 11, 2001). The release states: “United Airlines has confirmed one of its flights has crashed near Pittsburgh, Pennsylvania. United Flight 93, a Boeing 757 aircraft, is the flight number involved. The flight originated in Newark and was bound for San Francisco.” The release adds, “United is deeply concerned about a further flight, United Flight 175, a Boeing 767, which was bound from Boston to Los Angeles.” (United Airlines 9/11/2001) Although Flight 175 hit the World Trade Center at 9:03 (see 9:03 a.m. September 11, 2001), United Airlines will not publicly confirm it has crashed until 11:53 a.m. (see 11:53 a.m. September 11, 2001).

American Airlines issues a statement confirming that it has lost two of its aircraft in “tragic incidents this morning.” The statement identifies the aircraft as “Flight 11, a Boeing 767 en route from Boston to Los Angeles,” and “Flight 77, a Boeing 757 operating from Washington Dulles to Los Angeles.” The statement adds, “Because of the heightened security due to the nature of today’s events, American said it is working closely with US government authorities and will not release more information at this time.” (Associated Press 2001 pdf file; Associated Press 9/11/2001; CNN 9/12/2001) Flight 11 hit the North Tower of the World Trade Center at 8:46 a.m. (see 8:46 a.m. September 11, 2001) and Flight 77 hit the Pentagon at 9:37 a.m. (see 9:37 a.m. September 11, 2001). (9/11 Commission 6/17/2004)

Passengers and crew members on board Delta Air Lines Flight 1989, which was wrongly suspected to have been hijacked, are finally allowed to get off their plane and are taken to be interviewed by the FBI. (Federal Aviation Administration 9/16/2001; Federal Aviation Administration 9/17/2001 pdf file; O'Mara 9/11/2006) Delta 1989 made an emergency landing at Cleveland Hopkins Airport in Ohio after FAA and military personnel mistakenly thought it was hijacked and might have a bomb on board (see (10:18 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 27-28; O'Mara 9/11/2006; Spencer 2008, pp. 167-169) The plane was directed to a remote part of the airport, far away from the terminal, and the pilots were told not to allow passengers off.
No Evidence of Hijacking or Bomb - At 11:28 a.m., Cleveland Airport’s air traffic manager calls city officials and says he has no apparent reason to believe Delta 1989 has been hijacked, and he does not have any specific bomb threats. He says he has just received clearance from the FAA headquarters, which told him the airport had no reason to hold the aircraft unless city officials have other information from the FBI. (Federal Aviation Administration 9/16/2001; Spencer 2008, pp. 229)
SWAT Team and FBI Approach Plane - Delta 1989’s pilots, Captain Paul Werner and First Officer David Dunlap, are finally informed that the Cleveland Police SWAT (special weapons and tactics) team and a team of FBI agents are coming out to their aircraft. While the FBI agents approach the plane, the SWAT team takes up a position about 50 yards behind it. Lt. Bernie Barabas, the leader of the SWAT team, will later recall, “If there had been some sort of problem and this turned into a situation where this was a live hijacking, or if they started killing Americans, we were going to act.”
SWAT Team Sees Pilot with Bloodied Face - Suspicion is aroused when Werner accidentally knocks his head and cuts it while returning to his seat, after going to the cabin to speak to the plane’s passengers. The members of the SWAT team outside are perplexed when they see him leaning out of the window to give the “all clear” signal, with blood running down his face. They then board the plane. (O'Mara 9/11/2006; Spencer 2008, pp. 270)
Passengers Taken off Plane - By 11:34 a.m., according to an FAA chronology, the FBI has commenced a controlled debarkation of Delta 1989. (Federal Aviation Administration 9/17/2001 pdf file) The FBI agents slowly and carefully remove the passengers in small groups. (O'Mara 9/11/2006) According to some accounts, there are 78 people on the plane. (Singer 9/11/2001; Federal Aviation Administration 9/16/2001) But other accounts say there are about 200 on it. (Singer 9/11/2001; Dunn 9/11/2001; WCPN 9/12/2001) The FBI then instructs everyone that has got off to gather their belongings and line them up on the tarmac. (Spencer 2008, pp. 270) Every piece of luggage and carry-on baggage will be opened and examined by security agents. (O'Mara 9/11/2006) Bomb-sniffing dogs board the aircraft, which is then searched, but no explosives will be found.
Passengers Taken Away and Interviewed - The SWAT team gathers the plane’s crew and passengers onto nearby buses. (Singer 9/11/2001; Spencer 2008, pp. 271) According to a timeline provided by the Cleveland Airport air traffic control tower, at 12:23 p.m. the passengers are taken to the Federal Facilities Building, located on the opposite side of the airfield to the terminal, where they are debriefed by the FBI. (Federal Aviation Administration 9/16/2001) But the Associated Press will report that they are taken to a nearby NASA facility, presumably the Glenn Research Center, which is located next to the Cleveland airport. (Singer 9/11/2001; Sirhal 11/27/2002) After being interviewed separately by FBI agents, the passengers will be put up at a local Holiday Inn. (Calder 9/15/2001)

United Airlines finally issues a press release confirming that Flight 175 has crashed, nearly three hours after this aircraft hit the World Trade Center (see 9:03 a.m. September 11, 2001). The release states, “United Airlines has now confirmed that two of its aircraft have crashed.” These include “United Flight 175, a Boeing 767 aircraft, [that] departed from Boston at 7:58 a.m. local time, bound for Los Angeles, with 56 passengers onboard, two pilots and seven flight attendants.” (United Airlines 9/11/2001) United Airlines previously issued a press release, at 11:17, confirming the crash of Flight 93 (see 11:17 a.m. September 11, 2001), but this had stated that the airline was, at that time, only “deeply concerned” about Flight 175. (United Airlines 9/11/2001) However, at 9:22, the United Airlines System Operations Control manager had issued an advisory to all the airline’s facilities, stating that Flight 175 had been in an accident in New York (see 9:22 a.m. September 11, 2001). (9/11 Commission 8/26/2004, pp. 26) And Colin Scoggins, the military liaison at the FAA’s Boston Center, will later claim that United confirmed to the center that Flight 175 was down, “within two or three minutes” (see (9:06 a.m.) September 11, 2001). (Bronner 8/1/2006)

The entrance to Offutt Air Force Base’s bunker.The entrance to Offutt Air Force Base’s bunker. [Source: CBC]Air Force One, with President Bush on board, lands at Offutt Air Force Base near Omaha, Nebraska, accompanied by two F-16 fighter jets. (Tapper 9/12/2001; Bamford 2004, pp. 89; 9/11 Commission 7/24/2004, pp. 326) Offutt is the home of the US Strategic Command (Stratcom), which controls America’s nuclear weapons. (Associated Press 9/11/2001; Hansen 9/6/2011) The large base is one of the most heavily defended in the US. (Langley 12/16/2001) Personnel there were told earlier in the day that the president might come to Offutt during the crisis but they only received confirmation that he would be landing at the base about 20 to 30 minutes ago. (Dejka 2/27/2002; Dejka 9/8/2002; Liewer 9/9/2016) They have, however, taken the initiative to start preparing for his arrival. “There were pretty wide-scale preparations going on anticipating that the president might come, without knowing for sure, even before we got notice that he was coming,” Admiral Richard Mies, commander in chief of Stratcom, will later recall. “We’d started to evacuate the main quarters that could be used for VIPs and install some of the protection there that’d be needed in case [Bush] needed to spend the night,” Mies will say. (Kelly 12/27/2011; Graff 9/9/2016) Journalists on Air Force One were not told they would be landing at Offutt. However, they learned what was happening when they saw a local television channel showing the plane arriving at the base (see (2:50 p.m.) September 11, 2001). (Gilbert et al. 2002, pp. 198; Sammon 2002, pp. 120-121; Sylvester and Huffman 2002, pp. 138) Bush will get off the plane about 10 minutes after it lands and then be taken to an underground command center (see (3:00 p.m.-3:10 p.m.) September 11, 2001). (Tapper 9/12/2001; Bamford 2004, pp. 89) He will conduct a meeting of the National Security Council in a secure video teleconference while he is at the base (see (3:15 p.m.) September 11, 2001). (Sammon 10/8/2002; 9/11 Commission 7/24/2004, pp. 326) Personnel at Offutt were the middle of a major training exercise called Global Guardian when America came under attack this morning (see 8:30 a.m. September 11, 2001 and Before 9:00 a.m. September 11, 2001), although the exercise has now been canceled (see (10:44 a.m.) September 11, 2001). (Dejka 9/8/2002; Schmitt and Shanker 2011, pp. 22)

A US Airways airliner.A US Airways airliner. [Source: Public domain]A US Airways plane that is flying to the United States from Madrid, Spain, is incorrectly suspected of being hijacked. (Federal Aviation Administration 9/11/2001; Rice 10/24/2001) It is stated over an FAA teleconference that the White House has reported this suspicious aircraft, which is heading to Philadelphia International Airport, and the military is scrambling fighter jets in response to it. (Federal Aviation Administration 1/2/2002) NORAD’s Northeast Air Defense Sector (NEADS) was alerted to the plane by US Customs and the FBI, according to a NORAD representative on the Pentagon’s air threat conference call (see 9:37 a.m.-9:39 a.m. September 11, 2001). NORAD has been unable to locate the aircraft on radar, according to the NORAD representative. (US Department of Defense 9/11/2001) Accounts conflict over whether the plane is US Airways Flight 930 or Flight 937. (Federal Aviation Administration 9/2001; Federal Aviation Administration 9/11/2001; Federal Aviation Administration 1/2/2002)
Plane Is Reportedly Transmitting the Hijack Signal - Lewis Libby, Vice President Dick Cheney’s chief of staff, who is in the Presidential Emergency Operations Center (PEOC) below the White House, will later recall that when those in the PEOC learn of the suspect flight, “we got word that it was only 30 minutes or so outside of US airspace.” According to Libby, the plane’s transponder is transmitting the code for a hijacking: He will say it is reported that the flight has been “showing hijacking through some electronic signal.” (Libby 11/14/2001) However, according to the NORAD representative on the air threat conference call, the plane’s transponder has not been “squawking” the code for a hijacking. “We do not have squawk indication at this point,” he has said.
Plane Is Reportedly Diverted to Pittsburgh - An FAA representative on the air threat conference call apparently says an e-mail has been sent from the suspicious aircraft, stating that the plane is being diverted to Pittsburgh, although the FAA representative’s communications are distorted and therefore unclear. (US Department of Defense 9/11/2001)
President Says Fighters Can Shoot Down the Plane - President Bush discusses the suspicious US Airways flight with Secretary of Defense Donald Rumsfeld over the air threat conference call after landing at Offutt Air Force Base in Nebraska (see 2:50 p.m. September 11, 2001) and Major General Larry Arnold, the commander of the Continental United States NORAD Region (CONR), listens in. (Filson 2003, pp. 87-88) Rumsfeld wants Bush to confirm that fighters are authorized to shoot down the plane if it is considered a threat to a city in the US. “The reason I called… was just to verify that your authorization for the use of force would apply as well in this situation,” he says. Bush replies, “It does, but let us make sure that the fighters and you on the ground get all the facts.” (US Department of Defense 9/11/2001)
Plane Is on the Ground in Spain - After a time, it will be found that the plane is not a threat and is on the ground in Spain. Arnold will be called by Colonel Robert Marr, the battle commander at NEADS, and told, “We just talked to the airline and that aircraft is back on the ground in Madrid.” (Filson 2003, pp. 88) According to Libby, “It turned out that, I think, it was only 35 minutes out of Spanish airspace, not out of our airspace.” (Libby 11/14/2001) Reggie Settles, the FAA representative at NORAD’s Cheyenne Mountain Operations Center in Colorado, will be informed by US Airways that Flight 937 in fact never existed. However, he will be told, there is a US Airways Flight 911, which “took off from Madrid,” but “has turned back and returned to Madrid,” and “is not en route to the United States.” (US Department of Defense 9/11/2001)
President Decides to Leave Offutt after the Concerns Are Resolved - After he learns that the suspicious plane is back in Spain, Arnold will pick up the hot line and tell Bush: “Mr. President, this is the CONR commander.… No problem with Madrid.” According to Arnold, Bush will reply, “Okay, then I’m getting airborne.” (Filson 2003, pp. 88) Bush will take off from Offutt aboard Air Force One at around 4:30 p.m. (see (4:33 p.m.) September 11, 2001). (CNN 9/12/2001) Numerous aircraft are incorrectly suspected of being hijacked on this day (see (9:09 a.m. and After) September 11, 2001). (9/11 Commission 7/24/2004, pp. 28; Baker 3/31/2005) The US Airways flight from Madrid is the last of these, according to Arnold. (Code One Magazine 1/2002)

Carl Levin.Carl Levin. [Source: Publicity photo]Air Force General Richard Myers is questioned about the US military’s response to the 9/11 attacks when he appears before the Senate Armed Services Committee for his confirmation hearing as chairman of the Joint Chiefs of Staff, but his answers are vague and confused, and he claims, incorrectly, that no fighter jets were scrambled in response to the hijackings until after the Pentagon was hit. (Shenon 2008, pp. 119; Farmer 2009, pp. 241-243) Myers has been the vice chairman of the Joint Chiefs of Staff since March 2000. (US Air Force 9/2005) With General Henry Shelton, the chairman of the Joint Chiefs of Staff, flying toward Europe on the morning of September 11 (see (8:50 a.m.-10:00 a.m.) September 11, 2001), he served as the acting chairman of the Joint Chiefs of Staff during the 9/11 attacks. (Myers 2009, pp. 10; Shelton, Levinson, and McConnell 2010, pp. 431-433)
Myers Says Fighters Were Only Scrambled after the Pentagon Attack - During the hearing, Senator Carl Levin (D-MI) asks if the Department of Defense was contacted by “the FAA or the FBI or any other agency” after the first two hijacked aircraft crashed into the World Trade Center, at 8:46 a.m. and 9:03 a.m. (see 8:46 a.m. September 11, 2001 and 9:03 a.m. September 11, 2001), but before 9:37 a.m., when the Pentagon was hit (see 9:37 a.m. September 11, 2001). Myers replies, “I don’t know the answer to that question.” Levin then asks if the military was “asked to take action against any specific aircraft” during the attacks. Myers answers, “When it became clear what the threat was, we did scramble fighter aircraft, AWACS, radar aircraft, and tanker aircraft to begin to establish orbits in case other aircraft showed up in the FAA system that were hijacked.” Myers elaborates later in the hearing, telling Senator Bill Nelson (D-FL): “[A]fter the second tower was hit, I spoke to the commander of NORAD, General [Ralph] Eberhart (see (9:37 a.m.) September 11, 2001). And at that point, I think the decision was at that point to start launching aircraft.” But he tells Levin that “to the best of my knowledge,” the order to scramble fighters was only given “after the Pentagon was struck.”
Flight 93 Was Not Shot Down, Myers Says - Myers addresses the military’s response to Flight 93, the fourth hijacked plane, which crashed in a field in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). He says: “[I]f my memory serves me… we had launched on the one that eventually crashed in Pennsylvania. I mean, we had gotten somebody close to it, as I recall.” However, he adds, “I’ll have to check that out.” When Levin mentions that there have been “statements that the aircraft that crashed in Pennsylvania was shot down,” Myers responds, “[T]he armed forces did not shoot down any aircraft.” He says, “[W]e never actually had to use force.” Although Myers appears unclear about when the North American Aerospace Defense Command (NORAD) launched fighters in response to the hijackings, he is more confident when he states: “At the time of the first impact on the World Trade Center, we stood up our Crisis Action Team. That was done immediately. So we stood it up. And we started talking to the federal agencies.” (US Congress 9/13/2001)
NORAD and the 9/11 Commission Contradict Myers's Account - Myers’s claim that fighters were only launched in response to the hijackings after the Pentagon was hit will later be contradicted by the accounts of NORAD and the 9/11 Commission, which state that fighters were ordered to take off from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001) and from Langley Air Force Base in Virginia at 9:24 a.m. (see 9:24 a.m. September 11, 2001). (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 20, 27) The 9/11 Commission will also contradict Myers’s claim that the military launched fighters in response to Flight 93 and “had gotten somebody close to it.” “By the time the military learned about the flight,” the 9/11 Commission Report will state, “it had crashed.” (9/11 Commission 7/24/2004, pp. 34)
Myers's Testimony Prompts Criticism in the Media - Journalist and author Philip Shenon will question why Myers, a veteran Air Force fighter pilot, would give such an inaccurate account of the military’s response to the 9/11 attacks during the hearing. “It seemed obvious that Myers, of all people at the Pentagon, would want to know—would demand to know—how jet fighters under NORAD’s control had responded on the morning of September 11 to the threat in the skies,” he will write. (US Congress 9/13/2001; Shenon 2008, pp. 119) John Farmer, the senior counsel to the 9/11 Commission, will comment that “Myers’s evident confusion about precisely what had occurred prompted criticism in the media and a quick, if contradictory, response from the administration.” (Farmer 2009, pp. 243) Major General Paul Weaver, director of the Air National Guard, will provide a more detailed account of the military’s response to the hijackings in an “impromptu hallway interview” at the Pentagon on September 14 (see September 14, 2001). (Whittle 9/14/2001) And four days later, NORAD will release a timeline of its response to the hijackings (see September 18, 2001). (North American Aerospace Defense Command 9/18/2001)

Major General Paul Weaver, director of the Air National Guard, provides reporters with details of the 9/11 attacks and the US military’s response to the hijackings. Speaking at the Pentagon, Weaver gives reporters a detailed account of what happened on September 11. He says Air National Guard planes responded to the hijackings on orders from NORAD’s Northeast Air Defense Sector (NEADS), which was alerted to the hijackings by the Federal Aviation Administration (FAA).
Fighters Took Off Too Late to Catch Flight 175 - Weaver says that at 8:53 a.m., seven minutes after Flight 11 crashed into the North Tower of the World Trade Center (see 8:46 a.m. September 11, 2001), two F-15 fighter jets took off from Otis Air National Guard Base in Cape Cod, Massachusetts, in pursuit of Flight 175, the second plane to be hijacked (see 8:46 a.m. September 11, 2001 and 8:53 a.m. September 11, 2001). However, Weaver says, the FAA had only told NEADS that “there was an airplane that had a problem,” and at that time it was unclear if Flight 175 had been hijacked. He says that although the fighters flew at over 500 miles per hour, they were unable to catch up with Flight 175 before it hit the South Tower of the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001).
More Fighters Were Launched Just before Pentagon Was Hit - Weaver says Flight 77, the third aircraft to be hijacked, flew west for 45 minutes and then turned east, and its transponder was turned off. He does not claim that the military received notice that it had been hijacked, but says NEADS scrambled F-16 fighters that were on alert at Langley Air Force Base in Virginia at 9:35 a.m. (see 9:24 a.m. September 11, 2001 and (9:25 a.m.-9:30 a.m.) September 11, 2001). Two minutes later, at 9:37 a.m., the Pentagon was hit (see 9:37 a.m. September 11, 2001). The F-16s, he says, subsequently remained on patrol over the Pentagon.
No Fighters Took Off to Intercept Flight 93 - Weaver says no fighters were scrambled to chase after Flight 93, the fourth hijacked plane, which crashed in a field in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). “There was no notification for us to launch airplanes,” he tells the reporters. “We weren’t even close.” (Whittle 9/14/2001; Farmer 2009, pp. 244) (However, also on this day, Deputy Defense Secretary Paul Wolfowitz contradicts Weaver’s claim. He tells PBS’s NewsHour, “[W]e were already tracking in on that plane that crashed in Pennsylvania,” and adds, “[T]he Air Force was in a position to do so [i.e. shoot Flight 93 down] if we had had to.” (Wolfowitz 9/14/2001; Farmer 2009, pp. 245) ) Weaver says that even if fighters had caught up with the hijacked planes, they may have been unable to stop them reaching their targets. “You’re not going to get an American pilot shooting down an American airliner,” he says. “We don’t have permission to do that.” According to Weaver, only the president can issue an order to shoot down an American airliner. (Whittle 9/14/2001)
Weaver's Account Is the 'Most Accurate' Prior to the 9/11 Commission's Investigation - The account he gives to reporters today, according to John Farmer, the senior counsel to the 9/11 Commission, will be “the last public statement uttered by General Weaver on the subject and proved to be the most accurate account of events issued until the 9/11 Commission’s investigation.” (Farmer 2009, pp. 245) Apparently after Weaver issues his statement to the reporters, an Air Force spokesman, speaking on condition of anonymity, adds that no regular Air Force planes were scrambled during the 9/11 attacks, “because continental air defense is the mission of the Air National Guard.” He says regular Air Force fighters “have air superiority as their mission,” which means they train “to deploy somewhere where we are engaged in hostile action and secure the skies.” These fighters, according to the spokesman, “ordinarily are not ready to fly on short notice and their pilots are not on standby to defend the United States.” (Whittle 9/14/2001)
Pentagon Has Been Slow to Answer Questions about Response to Hijackings - The Washington Post will comment, “Questions about the time it took US military planes to respond to the threat of several hijacked aircraft speeding toward the nation’s financial and military centers have dogged the Pentagon since the attacks.” It will add, “Top Pentagon officials have been slow to respond to press inquiries for a timeline that would establish the exact times that civil aviation authorities became aware of the hijackings, when US military commanders were notified, and when US fighter jets took to the air.” (Graham 9/15/2001) The previous day, Air Force General Richard Myers was questioned about the military’s response to the attacks before the Senate Armed Services Committee, but his answers were vague and confused (see September 13, 2001). (US Congress 9/13/2001; Farmer 2009, pp. 241-242) NORAD will release its own timeline of the events of September 11 and its response to the hijackings on September 18 (see September 18, 2001). (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/29/2004)

The Federal Aviation Administration (FAA) produces a chronology of the events of September 11, which it uses when it briefs the White House today, but the document fails to mention when NORAD’s Northeast Air Defense Sector (NEADS) was alerted to two of the hijacked planes. The FAA’s chronology, titled “Summary of Air Traffic Hijack Events,” incorporates “information contained in the NEADS logs, which had been forwarded, and on transcripts obtained from the FAA’s Cleveland Center, among others,” according to John Farmer, the senior counsel to the 9/11 Commission.
Document Includes Notification Times for First Two Hijacked Flights - The chronology refers “accurately to the times shown in NEADS logs for the initial notifications from FAA about the hijacking of American 11 and the possible hijacking of United 175,” according to the 9/11 Commission. It gives 8:40 a.m. as the time at which the FAA alerted NEADS to Flight 11, the first plane to be hijacked (see (8:37 a.m.) September 11, 2001), and 9:05 a.m. as the time when the FAA alerted NEADS to Flight 175, the second plane to be hijacked (see (9:03 a.m.) September 11, 2001). However, it makes no mention of when the FAA alerted NEADS to Flight 77 and Flight 93, the third and fourth planes to be hijacked. The FAA’s omission of these two notification times is “suspicious,” according to the 9/11 Commission, “because these are the two flights where FAA’s notification to NEADS was significantly delayed.”
Document Omits Notification Times for Flights 77 and 93 - The chronology, as Farmer will later point out, “makes no mention… of the notification to NEADS at 9:33 that American 77 was ‘lost’ (see 9:34 a.m. September 11, 2001) or of the notification to NEADS at 9:34 of an unidentified large plane six miles southwest of the White House (see 9:36 a.m. September 11, 2001), both of which are in the NEADS logs that the FAA reviewed” when it was putting together the timeline. It also fails to mention the call made by the FAA’s Cleveland Center to NEADS in which, at 10:07 a.m., the caller alerted NEADS to Flight 93 and said there was a “bomb on board” the plane (see 10:05 a.m.-10:08 a.m. September 11, 2001), even though this information was also “duly noted in the NEADS logs” that the FAA has reviewed.
Chronology Omits Other Key Information - The chronology, Farmer will write, reflects “a time at which the FAA was notified that the Otis [Air National Guard Base] fighters were scrambled” in response to the hijacking of Flight 11 (see 8:46 a.m. September 11, 2001), but it gives “no account of the scramble of the fighters from Langley Air Force Base” (see 9:24 a.m. September 11, 2001). It also fails to mention the report that NEADS received after Flight 11 crashed, in which it was incorrectly told the plane was still airborne and heading toward Washington, DC (see 9:21 a.m. September 11, 2001). Despite lacking information about the times when the FAA alerted NEADS to Flights 77 and 93, the FAA’s chronology is one of the documents used to brief the White House about the 9/11 attacks today (see September 17, 2001).
Investigators Were Told to Determine Exact Notification Times - The chronology is the product of investigations that began promptly in response to the 9/11 attacks. According to senior FAA officials, FAA Administrator Jane Garvey and Deputy Administrator Monte Belger “instructed a group of FAA employees (an ‘after-action group’) to reconstruct the events of 9/11.” This group, according to the 9/11 Commission, “began its work immediately after 9/11 and reviewed tape recordings, transcripts, handwritten notes, logs, and other documents in an effort to create an FAA chronology of events.” The group, according to one witness, “was specifically asked to determine exactly when the FAA notified the military that each of the four planes had been hijacked,” and “[s]everal people worked on determining correct times for FAA notifications to the military.” (Federal Aviation Administration 9/17/2001 pdf file; 9/11 Commission 7/29/2004; Farmer 2009, pp. 245-247) NORAD will release a timeline of the events of September 11 and its response to the attacks a day after the FAA chronology is published (see September 18, 2001). (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/29/2004)

The North American Aerospace Defense Command (NORAD) releases a chronology of the events of September 11 and its response to the terrorist attacks that day, but the accuracy of this account will later be challenged by the 9/11 Commission. (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 34; 9/11 Commission 7/29/2004)
NORAD Learned of First Hijackings Too Late to Defend the WTC - The chronology provides the times at which NORAD’s Northeast Air Defense Sector (NEADS) was alerted to the hijackings and when fighter jets were scrambled in response to the hijackings. It states that the Federal Aviation Administration (FAA) notified NEADS about Flight 11, the first hijacked aircraft, at 8:40 a.m. In response, the order was given to scramble two F-15 fighters from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), the same time that Flight 11 crashed into the World Trade Center (see 8:46 a.m. September 11, 2001), and the fighters were airborne at 8:52 a.m. (see 8:53 a.m. September 11, 2001). The FAA notified NEADS about Flight 175, the second hijacked aircraft, at 8:43 a.m., according to the chronology. When Flight 175 crashed into the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001), the chronology states, the Otis fighters were 71 miles away from New York.
Fighters Were Scrambled in Response to Flight 77 Hijacking - NEADS was alerted to Flight 77, the third hijacked aircraft, at 9:24 a.m., according to the chronology. In response, the order was given to scramble two F-16 fighters from Langley Air Force Base in Virginia (see 9:24 a.m. September 11, 2001) and these were airborne at 9:30 a.m. (see (9:25 a.m.-9:30 a.m.) September 11, 2001). But the F-16s were 105 miles from the Pentagon when it was hit at 9:37 a.m. (see 9:37 a.m. September 11, 2001). Regarding the fourth hijacked aircraft, Flight 93, the chronology gives “N/A” as the time the FAA alerted NEADS, but it also states that the FAA and NEADS discussed the flight on “a line of open communication.” At 10:03 a.m., when Flight 93 crashed in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001), the chronology states, the F-16s launched from Langley Air Force Base in response to the hijacking of Flight 77 were “in place to protect DC.” (North American Aerospace Defense Command 9/18/2001)
9/11 Commission Disputes NORAD's Account - The 9/11 Commission Report, released in 2004, will highlight what it says are inaccuracies in NORAD’s timeline of the events of September 11. It will state that NORAD’s claim that NEADS was alerted to Flight 77 at 9:24 a.m. was incorrect. The notice NEADS received at that time, according to the report, was the incorrect claim that Flight 11 “had not hit the World Trade Center and was heading for Washington, DC” (see 9:21 a.m. September 11, 2001). “NEADS never received notice that American 77 was hijacked,” the report will state. “It was notified at 9:34 that American 77 was lost (see 9:34 a.m. September 11, 2001). Then, minutes later, NEADS was told that an unknown plane was six miles southwest of the White House” (see 9:36 a.m. September 11, 2001). The report will state that NORAD’s claim that the Langley fighters were scrambled in response to the notification about Flight 77 is also incorrect. Instead, it will state, the fighters were scrambled in response to the incorrect report that Flight 11 was still airborne and heading south. (9/11 Commission 7/24/2004, pp. 34)
9/11 Commission Disputes NORAD's Account regarding Flights 175 and 93 - Furthermore, whereas NORAD’s chronology claims that NEADS discussed Flight 93 with the FAA on “a line of open communication,” the 9/11 Commission Report will state that NEADS “first received a call about United 93 from the military liaison at [the FAA’s] Cleveland Center at 10:07,” by which time the plane “had already crashed” (see 10:05 a.m.-10:08 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 30) And while NORAD states that the FAA notified NEADS about Flight 175 at 8:43 a.m., according to the report, the first notification came “in a phone call from [the FAA’s] New York Center to NEADS at 9:03” (see (9:03 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 23)
Military Has Been Slow to Provide Details of Its Response on September 11 - US military officials, according to the Washington Post, “have been slow to respond to press inquiries for a timeline that would establish the exact times that civil aviation authorities became aware of the hijackings, when US military commanders were notified, and when US fighter jets took to the air.” (Graham 9/15/2001) On September 13, Air Force General Richard Myers was questioned about the military’s response to the 9/11 attacks before the Senate Armed Services Committee, but his answers were vague and confused (see September 13, 2001). (US Congress 9/13/2001; Farmer 2009, pp. 241-242) A day later, Major General Paul Weaver, director of the Air National Guard, provided reporters with details of the military’s response to the hijackings in an “impromptu hallway interview” at the Pentagon (see September 14, 2001). (Whittle 9/14/2001)

Wayne Allard.Wayne Allard. [Source: Publicity photo]General Ralph Eberhart, the commander of the North American Aerospace Defense Command (NORAD), appears before the Senate Armed Services Committee and gives NORAD’s account of the events of September 11 and the military’s response to the terrorist attacks that day, but the 9/11 Commission will later find that some of the information he provides is incorrect. (US Congress. Senate 10/25/2001; 9/11 Commission 7/29/2004; Farmer 2009, pp. 248) Eberhart was at NORAD headquarters at Peterson Air Force Base, Colorado, and then went to NORAD’s operations center in Cheyenne Mountain when the 9/11 attacks were taking place. (9/11 Commission 3/1/2004 pdf file; 9/11 Commission 3/1/2004) NORAD released a timeline of its response to the hijackings on September 18 (see September 18, 2001) and Eberhart’s testimony is consistent with that account. (North American Aerospace Defense Command 9/18/2001)
Eberhart Says Fighters Were Scrambled in Response to First Hijacking - During the hearing, Eberhart tells Senator Wayne Allard (R-CO) that after the Federal Aviation Administration (FAA) alerted NORAD to the first hijacking, of Flight 11 (see (8:37 a.m.) September 11, 2001), NORAD ordered two F-15 fighter jets to take off from Otis Air National Guard Base in Cape Cod, Massachusetts (see 8:46 a.m. September 11, 2001), “almost simultaneously to the first crash” at the World Trade Center (see 8:46 a.m. September 11, 2001). Eberhart says that after he learned a plane had hit the WTC, he was initially unsure if that plane was Flight 11. “I’m sitting there hoping that someone has made a mistake; there has been an accident; that this isn’t the hijacked airplane [that hit the WTC], because there is confusion,” he recalls. He says he was informed that “it was a light commuter airplane” that hit the WTC, although, he says, it “didn’t look like that was caused by a light commuter airplane.”
Fighters Didn't Have Enough Time to Stop Second Crash - Eberhart says the FAA notified NORAD that there was “a second hijacked plane”—referring to Flight 175—“somewhere in there,” but although the Otis fighters were “flying toward New York” after being scrambled, they were still eight minutes away from the city when Flight 175 crashed into the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001). “Tragically, there was just too much distance between Otis and New York City to get there in time,” Eberhart comments.
Eberhart Says NORAD Learned Flight 77 Was Hijacked before It Crashed - Eberhart says the first documented instance NORAD has of the FAA notifying it about Flight 77, the third aircraft to be hijacked, was at 9:24 a.m. After the hearing, in responses submitted for the record, Eberhart adds that the FAA notified NORAD’s Northeast Air Defense Sector (NEADS) that Flight 77 “was headed towards Washington, DC.” NEADS, he states, “then passed this information to NORAD’s Air Warning Center and Command Center in Cheyenne Mountain, and to the Continental US NORAD Region’s Regional Air Operations Center.”
Fighters Were Scrambled Too Late to Prevent the Pentagon Attack - Eberhart says NORAD launched two F-16 fighters from Langley Air Force Base in Virginia “as soon as” the FAA alerted it to the hijacking of Flight 77 (see 9:24 a.m. September 11, 2001). However, he says, these fighters were still “approximately 13 minutes away from Washington, DC, when that tragic crash [at the Pentagon] occurred.”
Eberhart Is Unaware of Reason for FAA's Delay in Contacting NORAD - Senator Carl Levin (D-MI) tells Eberhart: “The timeline that we’ve been given is that at 8:55 on September 11, American Airlines Flight 77 began turning east, away from its intended course. And at 9:10, Flight 77 was detected by the FAA radar over West Virginia heading east. That was after the two planes had struck the World Trade Center towers. Then 15 minutes later, at 9:25, the FAA notified NORAD that Flight 77 was headed toward Washington.” In light of this, he asks, “[D]o you know why it took 15 minutes for the FAA to notify NORAD?” Eberhart replies: “I do not know, sir, why it took that amount of time for FAA. I hate to say it, but you’ll have to ask FAA.” Senator John Warner (R-VA), who has an extensive military background, tells Eberhart he is “a little bit stunned that you don’t know why that delay occurred.” He continues, saying, “I would have thought by now all of you in this chain would have gone back, rehearsed these things, figured out what happened, what went wrong, so that we ensure it won’t happen again.” In his responses submitted for the record, Eberhart suggests possible reasons for the delay, stating that after the FAA lost radar contact with Flight 77, it “began to receive calls from outside agencies with reports of a possible downed aircraft. Additionally, the loss of radio contact with the aircraft added to the confusion.” Consequently, he states, “I believe the FAA was faced with conflicting information, which hindered them from making an accurate assessment of the actual location of the aircraft.”
Eberhart Says NORAD Was Following Flight 93 before It Crashed - Eberhart says NORAD was aware of the problems with Flight 93, the fourth hijacked plane, before it crashed in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). He tells Allard that the FAA “knew before it deviated its flight pattern” that Flight 93 “was hijacked.” He says NORAD had been “trying to decide, initially, if that flight was going to continue west and if there was some other target for that flight. Was it Chicago? Was it St. Louis? And what might we do to launch an aircraft to intercept it.” But he says that after the FAA reacquired Flight 93 on radar, NORAD thought the plane “was headed probably for Washington, DC, but maybe New York.” He says NORAD decided at that time to keep the Otis and Langley fighters in place over New York and Washington. If another suspicious plane was approaching, he says, “our intent was to go out and meet that aircraft and destroy it if we needed to, if it entered either Washington, DC, or New York City airspace.” However, in his responses submitted for the record, Eberhart states that the “data/log entries received by NORAD from the FAA [after September 11] do not show a time or entry indicating the FAA specifically notified the Pentagon that United Airlines Flight 93 was hijacked.” He also states that NORAD “did not notify” the National Military Command Center (NMCC) at the Pentagon that Flight 93 had been hijacked.
9/11 Commission Disputes Some of Eberhart's Claims - Several claims Eberhart makes in the hearing will be contradicted by evidence uncovered by the 9/11 Commission during its investigation of the terrorist attacks. Whereas Eberhart says the military was first notified about the hijacking of Flight 77 at 9:24 a.m. and implies that this notification prompted the scrambling of fighters from Langley Air Force Base, according to John Farmer, the senior counsel to the 9/11 Commission, “[T]he first notification regarding American 77 occurred at 9:34, when it was reported ‘lost’” (see 9:34 a.m. September 11, 2001). (US Congress. Senate 10/25/2001; Farmer 2009, pp. 248-254) The notice NEADS received at 9:24 a.m., according to the 9/11 Commission Report, was the incorrect claim that Flight 11 “had not hit the World Trade Center and was heading for Washington, DC” (see 9:21 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 34) Consequently, Farmer will write, “the scramble of the Langley fighters did occur as an immediate reaction to a notification about hijacking, but that notification was not, as [Eberhart’s] testimony implies, a report that American 77 was hijacked, but the report that American 11 was still airborne and heading for Washington.” And while Eberhart claims the FAA told NEADS that Flight 77 was heading toward Washington, according to Farmer: “The FAA never notified NEADS that American 77 was heading for Washington, DC. There is no such notification recorded on any tape or in any log maintained at NEADS or at NORAD.” Furthermore, while Eberhart claims the military was following Flight 93 on radar before it crashed and was in position to shoot it down if it approached Washington, Farmer will write that “in fact, NEADS never located United 93 on radar, because the plane had already crashed by the time NEADS was notified.” (Farmer 2009, pp. 251, 254-255)

Joseph Trombino.Joseph Trombino. [Source: Family photo]An armored truck that was parked in the basement of the World Trade Center on the morning of 9/11 is discovered by recovery workers, who find that diamonds and bonds worth over a million dollars are inexplicably missing from it. The Brink’s armored truck was driven down to the underground receiving platform of the North Tower sometime before 8:46 a.m. on September 11, to deliver $14 million in cash. As well as this cash, the vehicle was carrying negotiable bonds and diamonds.
Driver Stayed with His Truck after Flight 11 Hit the WTC - Its driver, Joseph Trombino, waited while his three fellow guards dropped off the cash with some Bank of Nova Scotia guards, who put the money into canvas carts to be taken to a vault. Trombino was still in his vehicle when Flight 11 crashed into the North Tower, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). His fellow guards were subsequently evacuated from the tower. But instead of leaving, Trombino stayed with his vehicle, perhaps to protect the cargo or because he expected his colleagues to return. At 9:15 a.m., he called Brink’s and reported that a police officer had told him to move his truck because the tower was unstable. He also reported that the building was shaking and water was cascading down. He was killed when the North Tower collapsed, at 10:28 a.m. (see 10:28 a.m. September 11, 2001).
Recovery Workers Discover the Armored Truck - Now, over three months later, a recovery team unearths part of the roof of Trombino’s truck in the wreckage of the WTC. Sergeant Kevin Murphy of the Port Authority Police Department (PAPD) calls Lieutenant William Keegan, who is in charge of the PAPD’s nighttime rescue and recovery operation at Ground Zero, and tells him about the find. Keegan, in turn, contacts Brink’s to alert it to the discovery of one of its vehicles. Brink’s says it will send someone to the WTC site as soon as possible and mentions that the truck contains over a million dollars’ worth of valuables, comprising $250,000 in diamonds and $750,000 in negotiable bonds. The company also says the truck’s driver—Trombino—is still missing. Keegan then heads to the WTC site and a Brink’s supervisor also goes there.
Diamonds and Bonds Are Missing from the Truck - Once enough rubble has been removed to see inside the truck, Keegan and the other workers notice that the cab is empty. Keegan will later wonder if Trombino sought refuge under his truck when the Twin Towers collapsed, got into the back of it for safety, or left the vehicle and tried to get up to the street. Keegan wants to get into the back of the truck to remove the valuables from there. To get inside, the workers cut into a section of the roof with a circular saw and peel it back to create an opening. PAPD officer Tony Demeri is then lowered down through the hole. But after he carries out a full inspection, Demeri reports that the truck is empty, with no bonds or diamonds to be found. (New York Times 9/17/2001; Gardiner 9/22/2001; Keegan and Davis 2006, pp. 147-149) Trombino’s wife, Jean Trombino, will say in January 2002 that although her husband’s body has been recovered, she hasn’t been told where it was found. (New Jersey Star-Ledger 1/2/2002) Brink’s will report in 2014 that the body was found near the water fountain between the Twin Towers, in the WTC plaza, along with Trombino’s messenger bag. (Brink's Blog 9/10/2014) The canvas carts filled with the $14 million that Trombino delivered on September 11 will be discovered in the rubble of the WTC in February 2002. However, Keegan will write in 2006, “Neither the bonds nor the diamonds have ever been recovered.” (Keegan and Davis 2006, pp. 149)

One of the key variables in the computer simulations used by the National Institute of Standards and Technology (NIST) (see (October 2002-October 2005)) to explain the WTC collapses is the speed of the aircraft that hit the towers. However, there is no consensus on how fast the planes were traveling. The first estimate was contained in an initial research paper by engineers Zdenek Bazant and Yong Zhou, who stated that the planes were traveling at 342 miles per hour. (Bazant and Zhou 1/2002 pdf file) However, the Federal Emergency Management Agency (FEMA) and American Society of Civil Engineers (ASCE) report said that the plane that hit the North Tower was traveling at 470 miles per hour, whereas the plane that hit the South Tower was traveling at 590 miles per hour (see May 1, 2002). (Federal Emergency Management Agency 5/1/2002, pp. 31) NIST initially estimates speeds of 435 miles per hour for the plane that hit the North Tower and 497 miles per hour for the plane that hit the South Tower. These estimates closely match figures produced by the Massachusetts Institute of Technology, which finds speeds of 429 miles per hour and 503 miles per hour for the two planes. However, NIST is dissatisfied with these results and does a second study, which finds speeds of 466 and 545 miles per hour. It then uses speeds of 472 and 570 miles per hour in its severe case model, on which its final report is based. In this model, the simulation of the planes traveling faster means greater damage to the towers’ structure, making them more unstable. (Kausel 5/2002 pdf file; National Institute of Standards & Technology 9/2005, pp. 152-165 pdf file; National Institute of Standards and Technology 9/2005, pp. 109)

Matthys Levy.Matthys Levy. [Source: PBS]A report is made publicly available, which the Engineering News-Record calls the “most comprehensive study yet on the destruction of the World Trade Center.” The study was commissioned by WTC leaseholder Silverstein Properties Inc. to support a $7 billion insurance claim, and conducted by a team of engineers from several leading firms, including Weidlinger Associates, LZA Technology/Thornton-Tomasetti, and ARUPFire. It is intended to build on a previous study sponsored by FEMA (see May 1, 2002). The report’s findings are based on an analysis of original structural drawings, thousands of photos, and dozens of videos. Investigators used fire evaluation techniques and powerful computer software to simulate the condition of each tower at critical times between the planes’ impacts and the towers’ collapses. The earlier FEMA investigators had no access to such computer modeling. Matthys Levy, the chairman of Weidlinger Associates and one of the engineers on the study team, says, “The buildings had tremendous reserve capacity and that was reflected in all of the elements we analyzed. In fact, because there were so much excess capacity, the columns even in the impact floors did not buckle immediately, but failed as the result of the fire.” The report states that failure of the WTC’s steel floor supports (“trusses”) did not contribute to the collapses. Instead, the collapses were caused by the failure of steel structural columns that were either destroyed when the planes hit or lost fireproofing, leaving them vulnerable to the weakening effects of the ensuing fires. It says that debris and dust distributed by the plane crashes inhibited the fires, such that the average air temperatures on the impact floors were between 400 and 700°C (750-1,300°F): significantly lower than those associated with typical “fully developed” office fires. However, says Matthys Levy, “By the time the temperature inside the buildings reached 400 degrees, the steel would have lost approximately 50% of its strength. Eventually, gravity took over and the towers began to fall.” Then, according to the analysis led by researchers from LZA Technology/Thornton-Tomasetti, “Once collapse initiated in each tower, essentially all of the interior structure of the tower fell straight down with floors pancaking on top of one another. The network of perimeter steel columns and spandrels acted like a chute to funnel the interior contents into the tower footprint.” According to the computer simulations, the damage to the South Tower’s steel core columns was so severe that the tower should have collapsed immediately after the plane hit. Civil engineer John Osteraas says this incorrect result casts doubt upon some of the study’s predictions. The report concludes that the collapse of the South Tower did not cause or contribute to the subsequent collapse of the North Tower, thus supporting Silverstein Properties’ claim that the terrorist attack represented two occurrences, entitling it to two $3.5 billion insurance policy limits. A separate study commissioned by the insurers contradicts this (see October 23, 2002). The Silverstein report apparently does not examine the collapse of WTC Building 7, a 47-story skyscraper that also collapsed on 9/11 (see (5:20 p.m.) September 11, 2001). It has been passed on to the National Institute of Standards and Technology (NIST), which is undertaking its own investigation of the WTC collapses (see August 21, 2002). (Glanz and Lipton 9/30/2002; McLeod 10/23/2002; Silverstein Properties, Inc. 10/23/2002 pdf file; Post 10/25/2002; Glanz and Lipton 10/29/2002; Post 11/4/2002; Misonzhnik 4/30/2003)

The 9/11 Commission holds a public hearing at which it takes testimony from military officials about the timeline of events on the day of 9/11. The key witness is retired Air Force General Larry Arnold, who commanded NORAD’s Continental US Region on the day of 9/11. Under questioning from commissioner Richard Ben-Veniste, Arnold says, “I believe that to be a fact: that 9:24 was the first time that we had been advised of American 77 as a possible hijacked airplane.” However, the Commission will later conclude that the military was not notified of the hijacking at this time, although it had been mistakenly advised Flight 11 was inbound to Washington three minutes previously (see 9:21 a.m. September 11, 2001 and (9:24 a.m.) September 11, 2001). Arnold adds that if the military was slow in responding to Flight 77, it was because “our focus—you have got to remember that there’s a lot of other things going on simultaneously here—was on United 93.” However, Flight 93 was not hijacked until a few minutes after 9:24 (see (9:28 a.m.) September 11, 2001). Arnold adds: “It was our intent to intercept United Flight 93. And in fact, my own staff, we were orbiting now over Washington, DC, by this time, and I was personally anxious to see what 93 was going to do, and our intent was to intercept it.” However, the Commission will later conclude that the military did not learn that Flight 93 had been hijacked until around 10:00 a.m. (see 10:03 a.m. September 11, 2001). Prior to the hearing, the Commission’s staff had been concerned about the inaccuracy of timelines offered by the military. Author Philip Shenon will write: “It seemed all the more remarkable to [Commission staffer John Farmer] that the Pentagon could not establish a clear chronology of how it responded to an attack on the Pentagon building itself. Wouldn’t the generals and admirals want to know why their own offices—their own lives—had been put at risk that morning?” Therefore, Farmer thought that the hearing should clear things up, but, according to Shenon, he and his colleagues are “astonished” when they analyze what Arnold says, although he is not under oath on this day. Shenon will add, “It would later be determined that almost every one of those assertions by General Arnold in May 2003 was flat wrong.” (Shenon 2008, pp. 119-121)

Shyam Sunder.Shyam Sunder. [Source: NIST]The National Institute of Standards and Technology (NIST) releases nearly 500 pages of documents, detailing the latest findings of its investigation of the WTC collapses on 9/11. These include its hypotheses for the collapse sequences of each of the Twin Towers; details of their analysis of interviews with nearly 1,200 building occupants, emergency responders, and victims’ relatives; and information from their analysis of the emergency response and evacuation procedures. Their investigation into the collapses is based upon an analysis of thousands of photos and videos, examination of many of the elements used to construct the towers, and computer-enhanced modeling of the plane impacts and the spreading of the fires. Their hypothesis is that the towers collapsed ultimately due to the fires they suffered: As the fires burned, the buildings’ steel core columns buckled and shortened. This shifted more load to the buildings’ perimeter columns, which were already affected by the heat of the fires, and caused them to give way under the increased stress. Investigators have conducted a test with a reconstructed section of the WTC floor, and found that the original fireproofing was sufficient to meet the New York City building code. They say that had a typical office fire occurred in the towers, without the structural damage and the loss of some fireproofing caused by the plane impacts, it is likely the buildings would have remained standing. Lead investigator Dr. Shyam Sunder says, “The buildings performed as they should have in the airplane impact and extreme fires to which they were subjected. There is nothing there that stands out as abnormal.” NIST’s theories of why the WTC buildings collapsed conflict with an earlier investigation by FEMA, which claimed the collapse of the North Tower had begun in its core, rather than its perimeter columns (see May 1, 2002). (National Institute of Standards and Technology 10/19/2004; Lipton 10/20/2004)

The National Institute of Standards and Technology (NIST), which is conducting an investigation into the WTC collapses on 9/11, releases three new reports. Investigators say that the Twin Towers would probably have remained standing if the fireproofing material that surrounded the buildings’ structural steel had not been stripped away when the planes hit. Their report states that “[t]he jet fuel, which ignited the fires, was mostly consumed within the first few minutes after impact. The fires that burned for almost the entire time that the buildings remained standing were due mainly to burning building contents and, to a lesser extent, aircraft contents, not jet fuel.” However, they claim, without the loss of fireproofing during the planes’ impacts, the heat from the fires would have been insufficient to cause the buildings to collapse. They say that although the architects had in 1964 tested the impact of a Boeing 707 airplane crashing into the 80th floor of one of the towers, they never envisioned the intense fires that ensued. NIST also reports that the time taken by survivors from the North Tower to descend a flight of stairs was about double the slowest evacuation speed estimated in a standard fire engineering text. They state: “approximately 87 percent of the WTC tower occupants, including more than 99 percent below the floors of impact, were able to evacuate successfully.” However, they say, if each tower had been full when they were hit, as many as 14,000 people could have died. (National Institute of Standards and Technology 4/5/2005; Matthews 4/5/2005; Williams 4/5/2005; Barrett 4/6/2005)

A report is secretly delivered to Congress by the Pentagon’s Office of Inspector General, regarding the inaccuracy of statements made by Defense Department officials on the military’s response to the September 11 hijackings. The 9/11 Commission made a formal request in summer 2004 for the inspector general to investigate the matter, because military officials had given testimony that was later proved to have been false (see Shortly before July 22, 2004). For example, they claimed that NORAD had been tracking Flight 93 on 9/11 and was ready to shoot it down if it threatened Washington (see Shortly Before 9:36 a.m. September 11, 2001 and (9:36 a.m.-10:06 a.m.) September 11, 2001). Yet audiotapes obtained under subpoena showed NORAD was unaware of this flight until after it crashed. In its report, the inspector general’s office states that it found “the inaccuracies, in part, resulted because of inadequate forensic capabilities.” It says that commanders found it difficult to create an accurate timeline of the events of 9/11 due to the lack of a well-coordinated system in logging information about air defense operations. At the time, air defense watch centers had used handwritten logs, and these could be unreliable. Following the attacks, the report claims, commanders failed to press hard enough for an accurate timeline to be produced for the benefit of investigations, like the 9/11 Commission. Yet, as some of the Commission’s staff will later point out, the military had already reviewed the NORAD audiotapes chronicling the events of 9/11 prior to its officials giving their incorrect testimonies. In response to a freedom of information request by the New York Times, the inspector general’s report will be publicly released in August 2006, but the equivalent of several pages will be blacked out on national security grounds. (Bronner 8/1/2006; Eggen 8/2/2006; Shenon and Dwyer 8/5/2006; Reuters 8/5/2006; US Department of Defense 9/12/2006 pdf file)
9/11 Staff Member Criticizes Report - In his 2009 book The Ground Truth, John Farmer, who served as senior counsel to the 9/11 Commission, will criticize the inspector general’s report. Farmer says the report mischaracterizes the 9/11 Commission’s referral by saying the Commission had alleged officials knowingly made false statements, when instead it had simply “documented the facts concerning what occurred on 9/11, the disparity between those facts and what the government had been telling the public with total assurance since 9/11, and the relative ease with which anyone looking could have uncovered those facts.” He faults the inspector general for interpreting the issue narrowly, by focusing on statements made to the 9/11 Commission; ignoring the larger context in which the events of 9/11 were extremely significant and so it should have been extremely important for the military to understand the truth of what happened, in order to correct any problems, as well as to be able to present an accurate account to the White House and to the public; and failing to address the question of whether the false accounts had served anyone’s interests. The inspector general’s report affirms the claims of top NORAD commanders that, in Farmer’s words, they had been “simply too busy fixing the system and fighting the war on terror to concern themselves with piecing together the facts of 9/11.” Farmer will ask, “[H]ow… could the Department of Defense identify and correct operational weaknesses without knowing precisely what had occurred that morning?” He will question the report’s determination that the Defense Department lacked the forensic capabilities for maintaining logs, video and audio recordings, and storing radar information, and had not coordinated with the FAA on reconstructing the events of 9/11, as the Commission had documented evidence that the two agencies had indeed coordinated while developing their reconstructions of events. Farmer will write that “it is impossible to conclude honestly, from the two inspector general reports, that the official version of the events of 9/11 was the result of mere administrative incompetence; too many questions remain unanswered.” He will add, “History should record that whether through unprecedented administrative incompetence or orchestrated mendacity, the American people were misled about the nation’s response to the 9/11 attacks.” (Farmer 2009, pp. 283-289)

National Institute of Standards and Technology (NIST) releases a 12-page appendix to its final reports on the WTC collapses (see October 26, 2005) detailing tests it conducted on samples of the type of fireproofing used in the WTC. An earlier NIST report had concluded that loss of fireproofing was a major factor in the collapses (see April 5, 2005). The appendix was not included in earlier drafts of the report (see June 23, 2005) (National Institute of Standards and Technology 6/23/2005 pdf file; National Institute of Standards & Technology 9/2005, pp. 263-274 pdf file; National Institute of Standards and Technology 9/2005, pp. 149) NIST conducted a series of fifteen tests. In the tests projectiles were fired at fireproofing mounted on 12 inch x 12 inch plates, and steel bars with a one inch diameter. The fireproofing used in the tests was Blazeshield DC/F, one of the two grades of fireproofing used on the impact floors. In thirteen of the tests the projectiles were buckshot, which was fired at the steel samples from a modified shotgun at a distance of 29.5 ft. The other two tests used steel bolts and hexagon nuts, fired with less velocity and at closer range. According to NIST, “The test results support the assumption that, within the debris field created by the aircraft impact into WTC 1 and WTC 2, the SFRM [i.e., fireproofing] used for thermal insulation of structural members was damaged and dislodged.” (National Institute of Standards & Technology 9/2005, pp. 83, 263-274 pdf file)


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