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.

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 (NTSB) began a three day hearing in Washington, D.C., to investigate the midair ...

The hearing opened Wednesday with a video animation showing where the helicopter and airliner were leading up to the crash.

Transportation safety officials’ hearing reveals new details into what led to the January accident that killed 67 people.

A hearing investigating the mid-air collision over Ronald Reagan National Airport focused on the altitude of the U.S. Army ...

WICHITA, Kan. (KWCH) - A video shown Wednesday during an NTSB hearing on the collision between American Airlines Flight 5342 ...

Aircraft flown by PSA Airlines received collision avoidance alerts caused by helicopters five times in the five months prior ...

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

Investigators probing the January midair collision of a passenger plane and an Army helicopter over Washington that killed 67 ...