Investigators previously said the helicopter may have had inaccurate altitude readings in the moments before the crash, and the crew may not have heard key instructions from air traffic controllers.

Cockpit conversations a few minutes before the crash indicate that the crew may not have had accurate altitude readings, with the helicopter’s pilot calling out that they were at 300 feet (91 ...

What We Know About the Deadly Air Crash Between a Passenger Jet and a US Army Helicopter A congressional hearing Thursday reinforced the idea that the January midair collision between an American ...