Hollandale, MS, USA
N9148C
AIR TRACTOR INC AT-502B
The pilot reported that he was taxiing the tailwheel-equipped agricultural application airplane for takeoff when the airplane encountered a left quartering tailwind gust, and the pilot was unable to maintain directional control. The airplane veered left and departed the left side of the runway. The tailwheel block attaching bolts failed and the tailwheel spring impacted the ground, stopping the airplane's lateral rotation, which resulted in substantial damage to the fuselage just forward of the vertical stabilizer. The pilot reported no preaccident mechanical malfunctions or failures that would have precluded normal operation.
While back-taxiing the tail wheel-equipped agricultural application airplane for takeoff, the pilot reported that he encountered a gust of left quartering tailwind and was "unable to maintain directional control" of the airplane. The airplane veered left and departed the left side of the runway. The tail wheel block attaching bolts subsequently failed and the tail wheel spring then impacted the ground, stopping the airplane's lateral rotation, and shearing all four of the longerons just forward of the vertical stabilizer. The pilot reported no preaccident mechanical malfunctions or failures that would have precluded normal operation.
The pilot's failure to maintain directional control while taxiing in gusty wind conditions.
Source: NTSB Aviation Accident Database
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