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THE 9/11 COMMISSION REPORT
American Airlines Flight 11
(AA 11)
Boston to Los Angeles
United Airlines Flight 175
(UA 175)
Boston to Los Angeles
7:59
Takeoff
8:14
Last routine radio
communication; likely takeover
8:19
Flight attendant notifies AA of
hijacking
8:21
Transponder is turned off
8:23
AA attempts to contact the
cockpit
8:25
Boston Center aware of
hijacking
8:38
Boston Center notifies NEADS
of hijacking
8:46
NEADS scrambles Otis fighter
jets in search of AA 11
8:46:40
AA 11 crashes into 1 WTC
(North Tower)
8:53
Otis fighter jets airborne
9:16
AA headquarters aware that
Flight 11 has crashed into
WTC
9:21 Boston
Center
advises NEADS
that AA 11 is airborne heading
for Washington
9:24
NEADS scrambles Langley
fighter jets in search of
AA 11
8:14
Takeoff
8:42
Last radio communication
8:42-8:46 Likely takeover
8:47
Transponder code changes
8:52
Flight attendant notifies UA of
hijacking
8:54
UA attempts to contact the
cockpit
8:55
New York Center suspects
hijacking
9:03:11
Flight 175 crashes into 2 WTC
(South Tower)
9:15
New York Center advises
NEADS that UA 175 was the
second aircraft crashed into
WTC
9:20
UA headquarters aware that
Flight 175 had crashed into
WTC
Boston
Boston
New York City
New York City
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