TSB cites pilot error in Canadian helicopter accident
The Transportation Safety Board of Canada reported that the crash of a Bell 206B last May, 75 miles north of Fort McMurray, Alberta, was caused by the pilot's failure to recognize that the aircraft was entering a right-quartering tailwind that reduced the effectiveness of the helicopter's tail rotor. The helicopter — orbiting at a height of approximately 100 feet — experienced an unexpected right yawing motion from which it was unable to recover. The helicopter descended into a stand of poplar trees 60 to 70 feet tall, coming to rest on its right side.
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