Events (5)

• Shortly After 9:37 a.m. September 11, 2001: Supervisor at Army Airfield Sees Two Unidentified Aircraft on Radar, Circling above Pentagon 2001-09-11
• Early Morning September 11, 2001: Helicopter Crew at Aviation Unit near Pentagon Away for ‘Traffic Survey’ 2001-09-11
• (9:33 a.m.-9:37 a.m.) September 11, 2001: Reagan Airport Controllers Fail to Notify Pentagon and Nearby Helicopter Unit about Approaching Aircraft 2001-09-11
• Shortly Before 9:37 a.m. September 11, 2001: Pentagon Heliport Tower Controllers Concerned about Plane Hitting Pentagon 2001-09-11
• Shortly Before 9:37 a.m. September 11, 2001: Army Airfield near Pentagon Ordered to Recall Its Aircraft 2001-09-11