After a military helicopter collided with a passenger plane near Reagan National Airport, here’s what to know about TCAS, a ...
FOX 5 Washington DC on MSN3d
What caused the DC plane crash? Blackhawk helicopter may not have heard key transmission, NTSB saysA miscommunication and bad data may have contributed to last month’s deadly crash near Reagan National Airport.
The collision occurred in airspace that is difficult to navigate. Flight data, video and air traffic control audio show how the tragedy unfolded.
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