Incident Overview
A pilot reported that while conducting proficiency landings in the early morning hours, the wing of a single-engine tailwheel-equipped airplane began to lift during one landing. The pilot was unable to regain directional control, and the airplane ground-looped before coming to rest inverted on the runway.
Pilot Account
In a telephone interview, the pilot stated that the purpose of the flight was to perform proficiency landings. During one such landing, the wing lifted unexpectedly, and the pilot lost the ability to control the airplane's direction. The subsequent ground loop resulted in the airplane flipping over and resting inverted on the runway surface.
Mechanical Status
The pilot further reported that there were no mechanical malfunctions or failures with the airplane prior to or during the incident. All systems were functioning normally, and no anomalies were noted in the aircraft's performance aside from the loss of control.
Outcome
The airplane came to rest inverted on the runway following the ground loop. The incident occurred during the early morning hours on an unspecified runway. No other aircraft were involved.