At their closest points, helicopters and planes routinely flew within 75 feet near the airport, according to the NTSB.

A long list of things went wrong in January and contributed to the collision between an Army helicopter and an American ...

The Army helicopter that collided with a plane over D.C. in January had incorrect altitude readings, contributing to the ...

Investigators testifying at a hearing into the January's mid-air crash in Washington DC suggest faulty altitude data may have ...

Air traffic controller failed to notify commercial plane crew about approaching Army helicopter before Washington D.C.

During the hearings, the NTSB was told that the Army helicopter never heard the command from the air traffic controller to ...

The pilots of a Black Hawk helicopter that collided with a passenger jet near Washington Reagan National Airport in January ...

The first of the National Transportation Safety Board’s three days of investigative hearings is underway to help determine ...

New details are emerging about the deadly collision between an American Airlines flight and an Army helicopter in January ...

The National Transportation Safety Board will wrap up its public testimony about the fatal midair crash between an Army ...

The NTSB showed the harrowing video of the Jan. 29 crash over the Potomac River as the agency kicked off a three-day hearing ...

The National Transportation Safety Board will question witnesses Thursday about air traffic control training, a key part of ...