The National Transportation Safety Board has said the helicopter was flying above its mandated 200-foot ceiling and that its crew was likely wearing night vision goggles, which pilots said can ...

That altimeter uses a radio beam to show the helicopter’s altitude above ground level, but it may not have been what the pilots of the helicopter were referencing at the time of the crash ...

Airline pilots received more than 100 cockpit warnings over the past decade that they were in danger of a midair collision with a helicopter near Reagan National Airport, according to flight ...

The crew of the helicopter that collided midair with an American Airlines jet near Washington D.C.’s Ronald Reagan National Airport might not have heard instructions from the air traffic ...

on January 29, indicated the helicopter’s altimeter may have been inaccurate and the pilots may not have heard some calls from the Reagan National Airport control tower, officials said.