NTSB Identification: ERA09CA156
14 CFR Part 91: General Aviation
Accident occurred Sunday, February 01, 2009 in Lexington, KY
Probable Cause Approval Date: 05/12/2009
Aircraft: ROBINSON HELICOPTER R22 BETA, registration: N2620C
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot of the Robinson R-22 stated that he was preparing for takeoff in the center of a non-movement area. Upon advancing the throttle to 100%, the helicopter began to spin rapidly to the left while still on the ground. The pilot attempted to completely lower the collective lever while reducing throttle to stop the rotation, but felt no noticeable effect. He then pulled the mixture control knob to stop the engine, coming to rest at the edge of a non-movement area. As the helicopter spun, it drifted until the tailboom contacted a snow bank incurring substantial damage. The pilot stated that he was wearing a heavy coat and boots at the time of the accident, which may have interfered with his ability to operate the collective and anti-torque pedal controls.

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

The pilot's failure to maintain control of the helicopter during takeoff. Contributing to this accident was the interference of the flight controls by the heavy coat and boots the pilot was wearing.

Full narrative available

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