Summary
The accident occurred during the landing roll when the pilot inadvertently entered a ground loop. The pilot applied rudder input to correct the ground loop. The rudder control mixing unit in the empennage then shifted and jammed the rudder. Continued pressure on the rudder pedals by the pilot fractured the left rudder pedal at the crossover bar. Subsequently, the aircraft's wing struck the ground, causing substantial damage to the left wing.
Sequence of Events
The aircraft was in the landing roll phase when the pilot inadvertently entered a ground loop. To correct the ground loop, the pilot applied rudder input. The rudder control mixing unit, located in the empennage, shifted during this input, jamming the rudder. The pilot continued to apply pressure on the rudder pedals, which ultimately caused the left rudder pedal to fracture at the crossover bar. Following these events, the aircraft's wing struck the ground.
Damage
The left wing sustained substantial damage due to striking the ground during the evolution.