NTSB Identification: NYC08CA195.
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Accident occurred Tuesday, May 27, 2008 in Mt. Olive, AL
Probable Cause Approval Date: 07/30/2008
Aircraft: Schweizer 269C, registration: N368HF
Injuries: 1 Minor,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 certificated flight instructor and student pilot were conducting a hover taxi in a Schweizer 269C helicopter, from the hangar area to a fuel pump, a distance of approximately 600 feet. The student was initially at the controls. The flight instructor took the controls from the student upon reaching the fuel pump, after the student stated he was uncomfortable landing on a raised platform in the confined area. The flight instructor landed the helicopter on the platform, where it then "entered into ground resonance." The flight instructor "rolled off the throttle immediately," but the ground resonance intensified, resulting in substantial damage to the helicopter.

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

The flight instructor's inadequate remedial action following an encounter with ground resonance.

Full narrative available

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