The audio indicates that air traffic controllers tried to warn the Army helicopter about a nearby Canadair Regional Jet.
The crash occurred in a difficult to navigate airspace. Flight data, video and air traffic control audio reveal details leading up to tragedy.
Investigators say there are likely no survivors in the deadly aircraft collision that occurred Wednesday evening above the icy waters of the Potomac river.
The fatal midair collision between an American Airlines passenger jet and an Army helicopter followed a string of near misses ...