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9:40 a.m. September 11, 2001: Cleveland Center Notifies Regional Operations Center about Flight 93

2001-09-11 9:40 a.m.

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 pdf file]