Incident Overview
During an en route flight, the pilot encountered headwinds and decided to land at Goodland, Kansas to refuel. The landing was conducted on Runway 12 with a crosswind from 320 degrees at 6 knots.
Sequence of Events
After touchdown, the pilot experienced a cramp in his right leg. To alleviate the cramp, he removed his right foot from the rudder pedal. Subsequently, the aircraft began to turn left. The pilot then inadvertently applied the left rudder pedal on the passenger side with his right foot. He reported that the mistake was quickly recognized, but not in time to prevent a ground loop.
Aircraft Damage
As a result of the ground loop, the right main gear collapsed, and the right wing and horizontal stabilizer sustained damage.
Pilot Statement
The pilot stated that the leg cramp and subsequent inadvertent rudder input led to the loss of directional control.