Helicopter crew in collision with plane may not have heard key instruction from tower, NTSB says
The crew of the Army helicopter that hit a jet may have had inaccurate altitude readings and may not have heard air traffic ...
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Black Box From Black Hawk Helicopter Reveals Factors That May Have Contributed to Deadly DC Crash
New data revealing factors that potentially led to the deadly crash on January 29 has been recovered from the Black Hawk helicopter's black box.