Events (3)

• Shortly Before 9:35 a.m. September 11, 2001: Park Police Helicopter Instructed to Intercept Plane Approaching Pentagon 2001-09-11
• (9:35 a.m.-9:36 a.m.) September 11, 2001: Several Witnesses See Helicopter near the Pentagon 2001-09-11
• (9:36 a.m.) September 11, 2001: American Airlines Plane Seen Taking Off from Reagan Airport, Flying toward Pentagon 2001-09-11