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

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.

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

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

The National Transportation Safety Board, during hearings on Thursday, grilled officials from the Army, air traffic ...

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

It's been six months since 67 people were killed in a midair collision over the Potomac River, and now lawmakers say they are ...

The video was released Wednesday as NTSB board members opened a three-day hearing that aims to look into what caused the Jan.

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 will wrap up its public testimony about the fatal midair crash between an Army ...

The NTSB previously said the FAA had failed to address 85 near-misses between airplanes and helicopters near DCA in the three years before the crash.