Helicopter crew in collision with plane may not have heard key instruction from tower, NTSB says
The crew of the Army helicopter that collided in midair with an American Airlines jet near Washington, D.C.’s Ronald Reagan National Airport may have had inaccurate altitude readings in the moments ...
US probing 'bad data' possibly used by Black Hawk crew before deadly crash, official says
The National Transportation Safety Board is examining "bad data" the crew of an Army Black Hawk helicopter may have relied ...
Black Hawk helicopter’s altimeter may have been inaccurate, pilots may have missed some calls from control tower
Voice recordings from the Black Hawk helicopter involved in the crash with a commuter plan in Washington, DC, on January 29 ...