Accident Sequence
The accident occurred during a test flight of a newly installed GPS system. According to the responding FAA inspector, the pilot reported that while in a steep bank to the right, maneuvering for another pass, he encountered a slight buffet. He applied flaps and the buffet ceased. As he continued in the steep bank turn to the right, he encountered another buffet that was more pronounced. He added additional flaps, and the buffet stopped again.
Loss of Control
The pilot then encountered a gust of wind that started rolling the airplane further to the right. He applied full left aileron and full left rudder pedal. The pilot stated that he knew he was going to crash and was trying to slow the airplane down before impact. The left wing impacted the ground first, followed by the engine, which separated. The airplane then cartwheeled before coming to a stop upright.
Owner Observation
The airplane owner observed the maneuver before the accident and stated that the pilot turned tighter than normal.
Wind Conditions
At the time of the accident, the wind at the Golden Triangle Airport (GTR), Columbus, Mississippi, was reported as 270 degrees at 4 knots.
Investigation Findings
The FAA inspector stated that mechanical discrepancies were not reported nor discovered during the investigation.