The Flight 93 hijackers (probably inadvertently) transmit over the radio: “Hi, this is the captain. We’d like you all to remain seated. There is a bomb on board. And we are going to turn back to the airport. And they had our demands, so please remain quiet.”
[Boston Globe, 11/23/2001; Longman, 2002, pp. 209; MSNBC, 9/3/2002; 9/11 Commission, 6/17/2004 
] The controller responds, “United 93, understand you have a bomb on board. Go ahead,” but there is no response. There was a very similar “bomb on board” warning from the same flight at 9:32 a.m. (see (9:32 a.m.) September 11, 2001). The 9/11 Commission indicates that these are separate incidents. [9/11 Commission, 6/17/2004 ] Cleveland flight control apparently continues to wait for FAA superiors to notify NORAD. Earlier in the morning, Boston flight control directly contacted NORAD (see (8:37 a.m.) September 11, 2001) and local air force bases when they determined Flight 11 was hijacked.
9:40 a.m.-9:41 a.m. September 11, 2001: Airline Dispatcher Again Warns Flight 93 to Secure Cockpit
United Airlines flight dispatcher Ed Ballinger sends two messages to Flight 93, which he is monitoring, warning its pilots (who in fact are no longer in control of the plane) to secure the cockpit. At 9:40, he sends the text message to Flight 93: “High security alert. Secure cockpit. Two airliner hit NY Trade Center. And 1 aircraft in IAD missing. And one in EWR missing… too. UAL 175/93 missing.” A minute later, he again sends this message to Flight 93, but with “UAL 175/93 found” added at the end. [9/11 Commission, 8/26/2004, pp. 43] “IAD” is the code for Washington’s Dulles International Airport, from where Flight 77 took off, while “EWR” is the code for Newark Airport, from where Flight 93 took off, so presumably it is these missing aircraft that Ballinger is referring to. [Federal Aviation Administration, 9/17/2001 ] Ballinger sent previous warning messages to Flight 93 earlier on, telling it to “Beware any cockpit intrusion” at 9:23 (see 9:23 a.m.-9:26 a.m. September 11, 2001), and to “Secure cockpit” at 9:33 (see 9:32 a.m.-9:33 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 37 and 39]
Between 9:40 a.m. and 10:35 a.m. September 11, 2001: DC Air National Guard Pilots Authorized to Take Off and Briefed on Mission
Four pilots with the District of Columbia Air National Guard (DCANG) at Andrews Air Force Base, near Washington, finally receive authorization to get airborne in their fighter jets, and are given instructions on their mission. The pilots are Lieutenant Colonel Marc Sasseville, Lieutenant Heather Penney Garcia, Captain Brandon Rasmussen, and Major Daniel Caine.
Pilot Waiting ‘for Somebody to Task Me with Something’ – Rasmussen will later recall that, although he and his colleagues at the unit had been aware of the attacks in New York, it is only after the Pentagon is hit (see 9:37 a.m. September 11, 2001) that “we knew that we were going to be sticking around home and being quite busy.” And until the pilots are authorized to take off, he is “just kind of standing back, waiting for somebody to task me with something.” He will recall, “I was just waiting at the ops desk for someone to say, ‘Okay, we’ve been cleared to take off and go.’”
Sasseville Briefs Other Pilots – Rasmussen says that, after Sasseville and Caine receive authorization from their wing commander to get airborne and to use missiles, Sasseville, who is the acting operations group commander, looks at Penney Garcia and says, “You’re flying with me, and [Caine] you’re flying with [Rasmussen], do suit up and get out there as quick as possible.” According to another account, Sasseville gives his three fellow pilots a short briefing, telling them: “I have no idea what’s going on, but we’re flying. Here’s our frequency. We’ll split up the area as we have to. Just defend as required. We’ll talk about the rest in the air.” [Aviation Week and Space Technology, 9/9/2002; Filson, 2003, pp. 82-84; Rasmussen, 9/18/2003] Sasseville will recall, “There wasn’t a whole hell of a lot to talk about, because we didn’t know what was going on.” [Vogel, 2007, pp. 446]
Pilots Prepare to Fly – According to Rasmussen: “We were relieved to actually be given permission to go up and do something instead of feeling totally helpless. I mean we are fighter pilots, just like guard dogs chomping at the bit ready to go.” The four pilots run down the hallway and throw on their gear, grabbing their helmets, g-suits, and parachute harnesses, before heading to the operations desk to get their aircraft assignments. [Aviation Week and Space Technology, 9/9/2002; Rasmussen, 9/18/2003]
Commander Gives Instructions – According to author Leslie Filson, before Sasseville and Penney Garcia head to their jets, Brigadier General David Wherley, the commander of the DC Air National Guard, gives them instructions, regarding their mission. As Wherley will later recall, “My translation of the rules [of engagement] to [Sasseville] was, ‘You have weapons free flight-lead control.’” [Filson, 2003, pp. 82] “Weapons free” means the decision whether to shoot at a hostile aircraft rests with the lead pilot. [9/11 Commission, 7/24/2004, pp. 44] Wherley says, “Do you understand what I’m asking you to do?” and both pilots respond, “Yes.” Wherley then tells them to be careful. “It was important for them to understand that this was weapons free,” he will recall. [Filson, 2003, pp. 82] However, Sasseville will tell the 9/11 Commission that he does not remember receiving the rules of engagement he is supposed to follow until later on, after he has taken off. [9/11 Commission, 3/8/2004 ]
Jets Don’t Launch until 10:42 and After – The exact times when the four pilots are authorized to get airborne and receive their mission instructions are unclear. But Sasseville and Penney Garcia will take off from Andrews at 10:42 a.m., with their planes armed only with guns, and no missiles (see 10:42 a.m. September 11, 2001). Rasmussen and Caine take off at 11:11 a.m., by which time their jets have been armed with missiles (see 11:11 a.m. September 11, 2001). [Filson, 2003, pp. 82-84; 9/11 Commission, 2004]
9:40 a.m.-9:43 a.m. September 11, 2001: First Responders Arrive at Pentagon within Minutes of Attack
Numerous area firefighters and other emergency workers promptly learn of the Pentagon crash and are able to arrive at the crash scene within 5 or 6 minutes of the attack. These responders include members of the Arlington County Fire Department (ACFD) and the Fort Myer Fire Department, plus units belonging to the Fire and Rescue Department of the Metropolitan Washington Airports Authority (MWAA). [Goldberg et al., 2007, pp. 66] ACFD’s training officer, Captain Chuck Gibbs, reaches the crash site within 3 minutes of the attack, followed a minute later by Battalion Chief Bob Cornwell, who assumes initial incident command responsibilities. ACFD Captain Edward Blunt arrives at 9:42 and establishes Emergency Medical Services control. ACFD Truck 105 is the first unit to arrive, reaching the scene at 9:41. [US Department of Health and Human Services, 7/2002, pp. A5-A6 and 1-1 ] A minute after it, Rescue Engines 161 and 162 of the Fort Myer Fire Department arrive, followed by a reserve pumper, Engine 163. [Goldberg et al., 2007, pp. 68] MWAA fire and medical units, and the first contingent of the FBI’s National Capital Response Squad, also arrive within 5 minutes of the crash. By 10:00 a.m., most of the ACFD duty shift will be engaged at the Pentagon. [US Department of Health and Human Services, 7/2002, pp. A7 ] Federal, state, and local civilian police officers also arrive within minutes of the attack. [Goldberg et al., 2007, pp. 161] Most Arlington County Police Department officers will have reached the scene within 3 hours. [US Department of Health and Human Services, 7/2002, pp. C6 ] Several factors have contributed to the prompt emergency response: 
The Arlington County Emergency Communications Center (ECC), which is the focal point of all police and fire 911 calls for the county, received several calls from emergency workers who saw the low-flying plane approaching the Pentagon (see (9:36 a.m.-9:39 a.m.) September 11, 2001). [Goldberg et al., 2007, pp. 66] Some fire and rescue units responded after hearing the radio message of Fire Captain Steve McCoy, reporting the crash. [US Department of Health and Human Services, 7/2002, pp. A4 ] Numerous emergency units were already on the road near the Pentagon, and were able to quickly respond, after being called out to an apartment fire that was found to have already gone out (see (Shortly Before 9:37 a.m.) September 11, 2001). [Fire Engineering, 11/2002] And MWAA firefighters were already responding to a car crash at nearby Reagan National Airport, had heard the sound of the crash, and saw the resulting smoke rising into the air (see (9:20 a.m.-9:42 a.m.) September 11, 2001). [Goldberg et al., 2007, pp. 69-70]
Shortly After 9:37 a.m.: FISA Judge Grants Five Warrantless Surveillance Requests Minutes after Pentagon Attack
Royce Lamberth, head of the FISA court which grants warrants for intelligence cases, grants five warrantless surveillance requests minutes after the Pentagon attack. Lamberth will later report being stuck in a carpool lane near the Pentagon when it is hit. With his car enveloped in smoke, he calls US marshals to help him get to his office. Lamberth will later say that by the time officers reached him, “I had approved five FISA coverages [warrants] on my cellphone.” [Associated Press, 6/24/2007] Presumably this represents the start of a flurry of surveillance activity in response to the 9/11 attacks, but it is not known who was to be monitored or how their names were learned and acted on so quickly.
9:40 a.m. September 11, 2001: Cleveland Center Notifies Regional Operations Center about Flight 93
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 ] 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]
Shortly After 9:39 a.m. September 11, 2001: DC Air National Guard Commander Learns of Pentagon Attack, Rushes to Squadron Headquarters
The commander of the District of Columbia Air National Guard (DCANG) at Andrews Air Force Base, near Washington, finally heads across the base to the headquarters of the 121st Fighter Squadron, which is part of the DCANG, and joins his officers in responding to the terrorist attacks. [Washington Post, 4/8/2002; Vogel, 2007, pp. 445-446]
Squadron Leaders Not yet Gone ‘Into Action’ – Brigadier General David Wherley, the commander of the 113th Wing of the DC Air National Guard, is in his office at Andrews. He has already given his officers the go-ahead to use the unit’s missiles, so they can be unloaded from storage and put onto fighter jets (see (Shortly After 9:33 a.m.) September 11, 2001). [Spencer, 2008, pp. 156-157, 184] However, according to Captain Brandon Rasmussen, one of the DCANG pilots, it is only after the Pentagon is hit that “the squadron leadership went into action.” [Rasmussen, 9/18/2003]
Wherley Runs across Base – The Washington Post will report that Wherley’s “first inkling that the attacks would go beyond New York was when one of his officers, whose husband worked at the Pentagon, saw on television that the building had been hit and began shrieking.” After briefly comforting the woman, Wherley dashes from his office and runs several hundred yards across the base to the headquarters of the 121st Fighter Squadron.
Wherley Doesn’t Want Jets Launched Yet – Unlike other Air National Guard units, the DCANG reports to the president, rather than a state governor. [Washington Post, 4/8/2002; Vogel, 2007, pp. 445] Furthermore, since the Secret Service provides protection to the president, who is the commander in chief of the US military, it has some authority over the military, including the DCANG. [Spencer, 2008, pp. 123] DCANG squadron officers have already heard from their Secret Service contacts, who have asked them about getting fighters launched (see (Shortly After 9:35 a.m.) September 11, 2001). [Filson, 2003, pp. 78] But after arriving at the 121st FS headquarters, Wherley says he wants more explicit authorization before launching aircraft. He tells the squadron officers: “We have to get instructions. We can’t just fly off half-cocked.” [Washington Post, 4/8/2002; Vogel, 2007, pp. 445-446]
Takes over Call from White House – At the operations desk, Major Daniel Caine has recently been called by a Secret Service agent at the White House Joint Operations Center, who is requesting armed fighter jets over Washington. After Wherley has arrived at the 121st FS headquarters, Caine passes the phone to him, telling the caller, “Here’s my boss.” Caine then says, “I’m going to fly.” [Filson, 2003, pp. 78; 9/11 Commission, 3/8/2004 ; 9/11 Commission, 3/11/2004 ] Despite his responsibilities as the unit’s supervisor of flying, Caine has decided to get airborne himself, and heads off to join the other pilots preparing to take off from Andrews. [Filson, 2003, pp. 76; Spencer, 2008, pp. 184] Wherley will talk over the phone with the Secret Service, and try to obtain instructions for the launching of his fighter jets (see (Shortly After 9:40 a.m.) September 11, 2001, (9:45 a.m.) September 11, 2001, (10:15 a.m.) September 11, 2001, and (Between 10:16 a.m. and 10:35 a.m.) September 11, 2001). [9/11 Commission, 8/28/2003; Spencer, 2008, pp. 184-185, 218]
9:40 a.m. September 11, 2001: Langley Jets Directed toward Washington but Given Wrong Coordinates
NORAD’s Northeast Air Defense Sector (NEADS) issues coordinates to the three F-16 fighter jets launched from Langley Air Force Base in Virginia (see (9:25 a.m.-9:30 a.m.) September 11, 2001), sending them to Washington. However, the fighters head off in the wrong direction, reportedly because NEADS has accidentally given them incorrect coordinates. [Spencer, 2008, pp. 180-181]
Communications Problems – The Langley AFB jets have already mistakenly been sent east over the ocean (see 9:30 a.m.-9:37 a.m. September 11, 2001). At 9:36 a.m., the NEADS mission crew commander ordered that they be directed toward the White House (see 9:36 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 27] However, weapons director Master Sergeant Steve Citino has been having difficulty communicating with the jets. According to author Lynn Spencer, “NEADS radio coverage east of Washington is poor, and the noise level on the [NEADS] operations floor has only been exacerbating the problem.”
NEADS Issues Wrong Coordinates – Citino now forwards coordinates to the Langley jets, telling them to establish a combat air patrol over Washington. [Spencer, 2008, pp. 180] Apparently, it is Tech. Sgt. Ronald Belluscio, a senior weapons director technician, who contacts the jets at this time, although he will claim he orders them specifically toward the Pentagon. He will say: “I jumped on a frequency, per the senior director, and was told to ask the Langley birds to vector over the Pentagon. I didn’t know it had been hit.” [Filson, 2003, pp. 65] However, Citino has apparently given out the wrong coordinates. According to Spencer, “He inadvertently transposed two of the coordinates, and the F-16s turned onto a flight path that would take them 60 miles southwest of Washington.”
Aircraft Instrument Malfunctioning – What is more, as soon as the Langley jets turn onto their new heading, lead pilot Major Dean Eckmann has a problem with his aircraft. The bearing pointer on its horizontal situation indicator (HSI)—the instrument that shows a plane’s position relative to its intended destination—freezes. Eckmann therefore has to get the heading from one of the other Langley pilots, Captain Craig Borgstrom. Shortly after sending the three jets in the wrong direction, Citino will contact them again with the correct coordinates (see (Between 9:41 a.m. and 9:50 a.m.) September 11, 2001). [Spencer, 2008, pp. 180-181]
9:40 a.m. September 11, 2001: Hijacking Simulation Scheduled as Part of NORAD Exercise
As part of a NORAD training exercise, a simulated plane hijacking was scheduled to occur around this time. It was to have been based around politically motivated perpetrators taking command of an aircraft, landing it on a Cuba-like island, and seeking asylum there. The hijacking was one of several simulated scenarios prepared for the day. Details of the other scenarios are unknown. Major Kevin Nasypany, the mission crew commander at NORAD’s Northeast Air Defense Sector (NEADS) who’d helped designed the exercise, initially thought the reports of Flight 11 being hijacked were because “Somebody started the exercise early.” [Vanity Fair, 8/1/2006] The exercise was canceled after the second plane hit the World Trade Center (see (Shortly After 9:03 a.m.) September 11, 2001).
Soon after 9:37 a.m. September 11, 2001: Pentagon Medical Staff Implement Mass Casualty Plan; Aided by Pre-9/11 Exercises
Soon after the Pentagon is hit, medical workers initiate their mass casualty plan (MASCAL) for dealing with disasters. Sergeant Matthew Rosenberg, a medic at the Pentagon’s DiLorenzo Tricare Health Clinic, arrives at the center courtyard. Seeing smoke rising from the side of the building and patients staggering out, he radios the clinic: “You need to initiate MASCAL right now! We have mass casualties! I need medical assets to the courtyard!” Major Lorie Brown, chief nurse of the DiLorenzo Clinic, says that as soon as she sees people running down the corridor to evacuate, “we initiated the MASCAL, started galvanizing all of our assets and put our plan in action.” [Washington Post, 9/16/2001; Marble and Milhiser, 9/2004, pp. 7, 39] The Pentagon has actually conducted at least three MASCAL training exercises in the previous 12 months, based around a plane crashing into the place (see October 24-26, 2000)(see May 2001)(see Early August 2001). Lieutenant Colonel John Felicio, the deputy commander for administration of the DiLorenzo Clinic, says, “The saving grace to our efforts was the two MASCAL exercises we previously had conducted.… Our scenario for both MASCALS was a plane flying into the Pentagon courtyard.” Furthermore, the nearby Walter Reed Army Medical Center (WRAMC), which sends ambulances in response to the attack, has recently recovered from a four-day power loss (see August 27-31, 2001). A military report will later state: “Many believe that [this] extended emergency… helped WRAMC in its response on September 11.” [Marble and Milhiser, 9/2004, pp. 18, 146]
