NTSB Identification: WPR11CA040
14 CFR Part 91: General Aviation
Accident occurred Wednesday, November 03, 2010 in Carnation, WA
Probable Cause Approval Date: 03/16/2011
Aircraft: PIPER PA-18-150, registration: N4389Z
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.
During a local area personal flight, the pilot decided to make a practice landing on a gravel bar near the middle of a river. With limited landing distance, the pilot decided to fly his approach at a low airspeed, with the intention of touching down at the very edge of the bar. While on short final, the airplane encountered a downdraft and its main landing gear tires touched the surface of the water, whereupon it flipped over onto its back and came to rest upon the surface of the gravel bar. According to the pilot, there were no mechanical malfunctions with the airplane. As a result of the accident sequence, the top of the rudder and one lift strut were bent.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's failure to attain the proper touchdown point during a practice off-airport landing. Full narrative available
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