An American Airlines passenger jet and an Army helicopter collided on Jan. 29 as the plane prepared to land at Washington, D.

Nearby, a U.S. Army Black Hawk with three soldiers on board was ... A few minutes before the twin-engine jet was to land, air traffic controllers asked if it could use a shorter runway.

Nearby, a U.S. Army Black Hawk with three soldiers on board was ... A few minutes before the twin-engine jet was to land, air traffic controllers asked if it could use a shorter runway.