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]
After 10:00 a.m. September 11, 2001: United Airlines Tells FAA Flight 93 Is over Maryland, Says Military Will Be Informed
United Airlines official Sandy Rogers calls Ellen King at the FAA’s Command Center to discuss Flight 93. The timing of the call is not known specifically, although it appears to be after the Pentagon was hit and could not be long after Flight 93 is thought to have crashed, which is shortly after 10:00 a.m. (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). Rogers tells King that Flight 93 has been hijacked, and King responds, “Oh God… thank you,” indicating she was previously unaware of the hijacking. However, the FAA had been aware of the situation since a few minutes after the hijacking took place (see (9:33 a.m.) September 11, 2001 and 9:34 a.m. September 11, 2001). Rogers also says: “It’s over Hagerstown now and you’re not aware of it. It’s heading toward Washington, DC, and we are under a threat of a hijacking on board and this flight is out of our control now heading toward Washington, DC.” Rogers states that United Airlines is “advising the military” about the plane and King also says that the FAA will do the same. [Federal Aviation Administration, 10/14/2003, pp. 37-39 
] However, there are no other reports of Flight 93 ever being over Hagerstown, which is in Maryland. Flight 93 is said to crash in Shanksville, Pennsylvania, and is thought never to reach Maryland. There will be some—apparently mistaken—reports that the plane is still airborne after it is thought to have crashed (see (Between 10:10 a.m. and 10:18 a.m.) September 11, 2001 and 10:10 a.m.-10:11 a.m. September 11, 2001), and this may be another such report.
