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.

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

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 ...

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

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

The National Transportation Safety Board will wrap up its public testimony about the fatal midair crash between an Army ...

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

The National Transportation Safety Board on Thursday questioned the failure of an air traffic controller to issue a warning about a potential collision in the moments before a crash between an Army ...