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

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

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

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

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

The National Transportation Safety Board (NTSB) is holding a three-day hearing on the deadly plane crash at Reagan Airport ...

The NTSB continued its hearings Thursday into the deadly air collision between a military aircraft and a passenger jet.

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

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 began its three days of investigative hearings on Wednesday into January's midair ...

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