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

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

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

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

Incorrect altitude readings on the Army helicopter that collided with a passenger plane over Washington, D.C., in January ...

Investigators have found that a helicopter involved in a deadly crash with a passenger plane over Washington was flying above ...

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

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

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

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

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

They were fiancés, mothers, fathers, friends, pilots, lawyers, hunters, coaches and figure skaters. These are the 67 people ...