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

During the hearings, the NTSB was told that the Army helicopter never heard the command from the air traffic controller to ...

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 ...

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

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 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 ...

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 ...

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