NTSB Identification: WPR12CA086
14 CFR Part 91: General Aviation
Accident occurred Monday, January 30, 2012 in Cascade, ID
Probable Cause Approval Date: 04/02/2012
Aircraft: CESSNA 180, registration: N3242D
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.
According to the pilot and a witness, the landing approach was normal, and the airplane touched down in a three-point attitude close to the runway threshold and on the runway centerline. The airplane encountered a wind gust, became airborne again, drifted to the right, and touched down off the runway in an area covered with about 18 inches of snow. The pilot added power to recover, but the airplane’s main wheels sank into the snow, and the airplane nosed over onto its back, sustaining substantial damage to the horizontal and vertical stabilizers and to one wing. The pilot noted that no mechanical malfunction or failure contributed to the accident. The pilot stated that, if he had been aware of any wind gusts prior to landing, he would have conducted a wheel landing instead of a three-point landing. Witnesses familiar with the airport reported that trees partially sheltered the windsock from wind out of the south/southwest, which was the wind direction at the time of the accident, and, therefore, wind from this direction was not always accurately indicated by the windsock.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's inadequate compensation for a wind gust during landing, which resulted in a runway excursion. Contributing to the accident was a windsock partially sheltered by trees that provided inaccurate wind information. Full narrative available
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