Primary finding
Probable cause
The pilot's failure to maintain directional control during the landing roll, which resulted in aground loop.
Investigator assessment
Analysis narrative
The pilot of the tailwheel-equipped airplane reported that upon landing, the aircraft “immediately darted to the left” and ground looped. The right main landing gear collapsed, and the right wing and elevator impacted the ground, resulting in substantial damage to both. The pilot indicated that he may have inadvertently applied pressure to the left toe brake during touchdown. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.