On Sept. 11, 2001, joined Airlines trip 93 left Newark, N.J., in ~ 8:42 a.m., heading for mountain Francisco, Calif. There to be 38 passengers and also a crew of seven on board. Around 80 minute later, the airplane crashed into a field in Pennsylvania.
8:42 a.m. United 93 took off from Newark, more than 40 minute late.
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9:28 united 93 acknowledged a transmission from an FAA facility controller. This was the critical normal contact the FAA had actually with united 93.
The Sept. 11 Commission staff Report Read the Report top top FAA/NORAD solution to the Hijackings of four U.S. Flights Sept. 11, 2001.
9:29 A Cleveland facility controller and pilots of plane in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a battle from one unknown origin…" The controller responded, seconds later: "Somebody speak to Cleveland?"
This was complied with by a second radio transmission, with sounds the screaming and someone yelling "Get the end of here, gain out that here," again native an unknown source.
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The Cleveland center controller began to shot to determine the feasible source of the transmissions, and also noticed that unified 93 had descended part 700 feet. The controller attempted come raise united 93 numerous times, through no response.
9:30 The controller started to poll the other flights on his frequency to determine if castle heard the screaming; several stated they had.
9:32 A third radio transmission came over the frequency: "Keep remaining sitting. We have actually a bomb top top board."
The controller understood, but chose to respond: "Calling Cleveland center, you"re unreadable. To speak again, slowly."
He educated his supervisor, that passed the an alert up the chain of command.
9:34 Cleveland center reported, "United 93 may have a bomb top top board," to the FAA Command facility at Herndon, Va.; the information was relayed come the FAA headquarters.
By this time, 2 of the four hijacked planes had crashed. FAA headquarters had established an open line of communication with the FAA Command facility at Herndon, Va., and instructed it come poll every the centers about suspect aircraft. The Command facility executed the request. Because that the following 30 minutes, a Command facility manager to update executives in ~ FAA headquarters top top the development of united 93. Throughout this time, the plane reversed course over Ohio and also headed toward Washington, D.C.
The Cleveland controller had additionally observed united 93 climbing to 40,700 feet and also immediately moved several aircraft out of that way. The controller ongoing to try to contact United 93, and asked even if it is the pilot can confirm the he had been hijacked. There was no response.
9:36 Cleveland facility asked Command facility specifically whether someone had requested the military to start fighter aircraft to intercept united 93. Cleveland Center readily available to contact a nearby military base. Command facility replied that FAA personnel well over them in the chain of command had to make that decision and were functioning the issue.
9:39 A fifth radio transmission come over the radio frequency from joined 93:
Ziad Jarrah: Uh, is the captain. Would favor you every to remain seated. There is a bomb top top board and also are going back to the airport, and also to have our needs
The controller responded: "United 93, understand you have actually a bomb ~ above board. Go ahead." The flight did not respond.
9:41 Cleveland center lost unified 93"s transponder signal. The controller located the aircraft on primary radar, suitable its position with visual sightings from various other aircraft, and tracked the flight as the turned east, then south.
9:42 Command facility learned from television news reports that a plane had win the Pentagon. The Command Center’s national operations manager, Ben Sliney, ordered every FAA infrastructure to instruct all airborne plane to land in ~ the nearest airport.
This to be a completely uaudioeditorfree.comecedented order. The air traffic manage system taken on it with great skill, as about 4,500 commercial and general aviation aircraft shortly landed without incident.
9:46 Command facility updated FAA headquarters that unified 93 was currently "29 minutes out of Washington, D.C."
9:49 Thirteen minutes after obtaining the inquiry from Cleveland Center around military help, Command Center said that someone at headquarters should decide whether to request armed forces assistance:
FAA Headquarters: They"re pulling Jeff far to go talk about United 93.
Command Center: Uh, execute we desire to think about, uh, scrambling aircraft?
FAA Headquarters: Uh, God, i don"t know.
Command Center: Uh, that"s a decision somebody"s gonna need to make most likely in the next 10 minutes.
FAA Headquarters: Uh, ya know everybody just left the room.
9:53 FAA headquarters informed Command center that the deputy director because that air traffic solutions was talking to Deputy Administrator Monte Belger about scrambling aircraft. Then Command facility informed headquarters they shed track of unified 93 end the Pittsburgh area. Within seconds, Command facility received a intuitive report from another aircraft, and also informed headquarters that the aircraft was 20 mile northwest that Johnstown. A second aircraft had likewise spotted joined 193.
10:01 Command center advised FAA headquarters that one of the aircraft had actually seen united 93 "waving his wings." The aircraft had witnessed the radical gyrations in what investigators believe was the hijackers’ initiative to defeat the passenger assault.
10:03:11 joined 93 crashed in a ar near Johnstown, Pa., 125 mile from Washington, D.C.
10:07 The military"s NEADS (the Northeast wait Defense Sector) got a call around United 93 native the army liaison at Cleveland Center. The center was unaware that the plane had already crashed.
10:08 five minutes later, Command center forwarded this upgrade to headquarters:
Command Center: OK. Uh, over there is now on that unified 93.
FAA Headquarters: Yes.
Command Center: there is a report of black color smoke in the last position I provided you, 15 miles south of Johnstown.
FAA Headquarters: indigenous the plane or from the ground?
Command Center: Uh, they"re speculating it"s native the aircraft.
FAA Headquarters: OK.
Command Center: Uh, who, it hit the ground. That"s what they’re speculating, that"s speculation only.
The aircraft the spotted the "black smoke" was an unarmed Air national Guard cargo aircraft that likewise had watched American 77 crash right into the Pentagon 26 minutes earlier. After gift diverted to track American 77, the cargo airplane had resumed its trip to Minnesota and saw the smoke native the crash of unified 93, less than 2 minutes after ~ the aircraft went down.
10:10 having actually no expertise either that united 93 had been heading towards Washington, D.C., or that it had crashed, the NEADS Mission Crew Commander explicitly instructed that the Langley Air pressure Base battle aircraft that had actually been deployed walk not have actually "clearance
to shoot" aircraft over the nation"s capital.
The news that a reported bomb top top board united 93 spread quickly at NEADS. The wait defenders tried to find United 93"s major radar return and also tried to situate fighters come scramble toward the plane.
10:15 NEADS dubbed Washington center to report:
NEADS: I additionally want to provide you a heads-up, Washington.
FAA (DC): go ahead.
NEADS: joined nine three, have actually you obtained information on the yet?
FAA: Yeah, he"s down.
NEADS: He"s down?
NEADS: when did that land? cause we have acquired confirmation...
FAA: the did no land.
NEADS: Oh, he"s down? Down?
FAA: Yes. What up northeast of Camp David.
NEADS: Northeast that Camp David.
FAA: That"s the last report. Castle don"t know specifically where.
The NEADS wait defenders never located the trip or followed it on their radar scopes. The trip had already crashed by the moment they learned it to be hijacked.
10:17 Command center advised headquarters that its conclusion that united 93 had indeed crashed.
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Despite the discussions about military assistance, nobody from FAA headquarters requested military assistance regarding United 93. No one did any kind of manager at FAA headquarters pass any type of of the details it had about United 93 to the military.