The deadly midair collision between a US Army helicopter and a commercial passenger jet that killed 67 people in January may have been caused by faulty altitude readings aboard the military aircraft.

NEW YORK: An investigative hearing into a deadly mid-air collision of a US Army helicopter and a passenger plane that killed ...

The goggles also limited the pilots' peripheral vision as they flew near Ronald Reagan Washington National Airport.

Federal investigators will release their findings early next year about the cause of the midair collision, which killed 67 ...

The hearing opened Wednesday with a video animation showing where the helicopter and airliner were leading up to the collision. It showed how the helicopter flew above the 200 feet (61 meters) ...

The Federal Aviation Administration said on Friday it is planning additional helicopter route changes near Ronald Reagan ...

A three-day National Transportation Safety Board hearing on the deadliest U.S. aviation accident in decades dug into problems ...

The National Transportation Safety Board questioned witnesses Friday on collision avoidance technology and organizational ...

Friday was the final day of the National Transportation Safety Board's (NTSB) three-day hearing on the deadly plane crash at ...

NTSB investigators found Friday that the aircraft involved in the mid-air collision over DCA lacked certain collision ...