NTSB Identification: NYC06LA019.
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Accident occurred Saturday, October 29, 2005 in Doylestown, PA
Probable Cause Approval Date: 08/29/2006
Aircraft: Robinson R-22 Beta, registration: N8176B
Injuries: 1 Minor,1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The flight instructor and the student pilot were practicing hovering autorotations from about 3 feet above the ground. The student pilot "cut the throttle," and the helicopter descended. The flight instructor could not recall whether he or the student pilot was moving the collective pitch control. The helicopter subsequently impacted the ground "hard," and "started into a dynamic rollover." The flight instructor stated the helicopter's performance at the time of the accident was "fine," and an inspection of the helicopter by an FAA inspector revealed no mechanical abnormalities.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The flight instructor's inadequate remedial action, which resulted in a hard landing and subsequent rollover.

Full narrative available

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