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

Three days of investigative hearings on the deadly midair collision between a military helicopter and passenger plane over ...

It showed how the helicopter flew above the 200 feet (61 metres) altitude limit on the helicopter route along the Potomac ...

Hours of testimony and thousands of pages of documents made public Wednesday by federal accident investigators probing the deadliest U.S. airline crash in decades painted a picture of the airspace in ...

Flight instruments probably led the Black Hawk crew to believe the helicopter was lower than it actually was before the ...

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 said on Wednesday that testing showed faulty altitude data in U.S. Army helicopters ...

The head of the National Transportation Safety Board sharply criticized U.S. officials for failing to act before the January ...

Pilots of an Army helicopter that collided with a passenger jet near DC airport didn't know how high they were flying because of altimeter discrepancies.

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