Departure and Flight
The airplane departed Modesto Airport (MOD) in Modesto, California, on a VFR pleasure flight to Half Moon Bay Airport (HAF) in Half Moon Bay, California. The flight to Half Moon Bay was uneventful.
Landing Approach
The pilot negotiated a traffic pattern for Runway 30 at Half Moon Bay Airport.
Landing Incident
During the landing roll-out, the pilot reported that the airplane's left wing began to rise. The pilot immediately added power and applied left aileron, but these actions had no effect. Subsequently, the airplane's right wing contacted the ground and the airplane ground looped to the right.
Pilot Report
The pilot stated that the surface winds were calm and that the flight controls operated normally throughout the event.