The audio indicates that air traffic controllers tried to warn the Army helicopter about a nearby Canadair Regional Jet.

Audio from the American Airlines plane crash in Washington DC documents air traffic control's reaction to the collision.

Air traffic control audio from a plane crash near Ronald Reagan National Airport sheds light on the moments before and after ...

Yeary said there are many dynamics at play that cannot be captured in a quick sound clip. Yeary points to the last exchange between air traffic control and the Black Hawk helicopter, which starts ...

The NTSB says when the Jan. 29 collision between a passenger plane and helicopter occurred, the air traffic control tower had ...

The military helicopter which collided with an American Airlines passenger plane was flying 100ft higher than it should have ...