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Aviation Accident

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NTSB Identification: GAA19CA170
14 CFR Part 91: General Aviation
Accident occurred Friday, March 15, 2019 in Moberly, MO
Probable Cause Approval Date: 11/06/2019
Aircraft: Piper PA 11, registration: N4926M
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 tailwheel-equipped airplane reported that, during the landing roll, the right wing "lifted abruptly and rapidly." He attempted to correct with right aileron, but the airplane veered left and then began to yaw left. The pilot added right rudder and power to correct to no avail. Subsequently, he reduced power, and the airplane exited the runway, impacted a ditch, and then came to rest inverted.
The airplane sustained substantial damage to the right wing and rudder.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The pilot estimated that the wind was from 300° at 24 knots, gusting to 28 knots. The airport’s automated weather observation station reported that, about 5 minutes before the accident, the wind was from 320° at 15 knots, gusting to 21 knots. The pilot landed the airplane on runway 31.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
  • The pilot's failure to maintain directional control during the landing roll in gusting wind conditions.