The National Transportation Safety Board began its three days of investigative hearings on Wednesday into January's midair ...

Federal investigators opened a three-day inquiry Wednesday into the January plane crash that killed 67 people over Washington ...

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

Air traffic controllers reportedly warned about the hazards of helicopter traffic near the airport for years leading up to ...

The National Transportation Safety Board on Thursday continued to grill officials from the Army, air traffic controllers and ...

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

Investigators so far have highlighted several factors that may have contributed to the collision, which left 67 people dead.

The communications between pilots and air traffic control were laid out in a visual timeline in Day One of the NTSB ...

The NTSB concluded three days of investigative hearings into the collision between an Army helicopter and a passenger plane ...

Friday was the final day of the National Transportation Safety Board's (NTSB) three-day hearing on the deadly plane crash at ...

The National Transportation Safety Board is launching a three-day investigation hearing on the D.C. plane crash that left 67 ...

The new details were part of thousands of documents -- including new video from the end of the runway showing the crash -- the National Transportation Safety Board released.