NTSB Factual Report

The private pilot was landing a tailwheel and tundra tire-equipped airplane on an asphalt runway which was about 4,010 feet long and about 100 feet wide. During the landing roll, the pilot reported that the airplane began to veer to the left. He applied full right rudder and added engine power to abort the landing, but the airplane continued to veer to the left. The pilot reduced engine power to idle, but the airplane ground looped, and departed the left side of the runway. The airplane received structural damage to the right wing spar, aileron, and flap, and the right main landing gear separated from the fuselage. The pilot reported that the airplane did not have a mechanical malfunction.

NTSB Probable Cause

The pilot's failure to maintain control of the airplane during the landing roll. Contributing to the accident was an inadvertent ground loop/swerve.