More than two weeks after a helicopter and airplane collision over Washington killed 67 people, investigators have completed their work at the scene where the aircraft fell into the Potomac River ...

The portion of the transmission that stated 'pass behind', may not have been received by the Black Hawk crew,” NTSB Chair Jennifer Homendy said.

The National Transportation Safety Board provided an update on Friday into the investigation of the deadly Army Black Hawk helicopter and American Airlines flight collision.