Accident Sequence
During the landing rollout, the pilot reported a sudden swerve to the left that he was unable to control. In response, he applied full power to initiate a go-around. The application of engine power torqued the airplane into a fully developed ground loop. The aircraft continued rotating approximately 135 degrees before coming to rest.
As the ground loop progressed, both main landing gear collapsed. The collapse allowed the propeller to strike the runway surface. The pilot also stated that the right brake had faded during the landing rollout, which he believed affected his ability to control the initial swerve.
Aircraft Damage
Both main landing gear collapsed, and the propeller contacted the runway. The extent of additional damage is not specified in the source.
Pilot Statement
The pilot reported being unable to control the left swerve during the rollout. He noted that the right brake faded, and he felt this contributed to the loss of directional control. The go-around power application then induced the ground loop.