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 controller to ...

Last month, an American Airlines passenger jet and an Army helicopter collided as the plane prepared to land at Washington ...

The National Transportation Safety Board says altimeter in the Black Hawk helicopter may have malfunctioned before the DCA ...

There's no indication the U.S. Army Black Hawk crew could tell there was an impending collision before its devastating crash ...