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

The deadly mid-air collision at Reagan Airport in January was years in the making, the operations manager of the DCA air ...

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

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

Tuesday was day two of a three-day hearing on the deadly plane crash at Reagan Airport that took the lives of 67 people in ...

Clark Allen, the former operations manager of the control tower at DCA, was asked Thursday about the training for the air ...

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

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

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