Incident Overview
An airline transport certificated pilot was landing a tundra tire-equipped airplane on a remote turf airstrip. The pilot reported that the landing was made toward the southeast. During the landing roll, the airplane yawed slightly to the left. The pilot applied the right brake, but the airplane continued to slide to the left on the grass-covered surface. The left tire then entered an area of willows located along the left edge of the airstrip. At that point, the right brake suddenly became effective, causing the airplane to yaw and ground loop to the right. The left wing struck the ground, resulting in the left wingtip being bent upward approximately 10 degrees.
Damage Assessment
The airplane sustained damage to the left wing spar, the left aileron, and the fuselage. No other damage or injuries were reported.
Contributing Factors
The investigation noted that the presence of willows along the airstrip edge and the sudden effectiveness of the right brake were involved in the sequence of events. However, the probable cause of the accident was not explicitly stated in the source.