What happened
During a dual instructional flight, the instructor was at the controls of a twin-engine airplane when the aircraft landed halfway down a 2,640-foot sod runway. As the aircraft approached the east end of the runway, the crew performed an intentional ground loop. This maneuver was executed to prevent the aircraft from crossing a road and colliding with trees.
Following the ground loop, the aircraft exited the left side of the runway, crossed a ditch, and came to a stop in the eastbound lane of a highway. There were no injuries reported following the event.
The investigation
The pilot, who was undergoing checkout in the aircraft, reported that after touchdown, the flaps were retracted and the brakes were applied. According to the pilot, there appeared to be no braking action available; even after pumping the brakes, the issue persisted.
An FAA inspector conducted an examination of the braking system and performed an operational check. The investigation found no preexisting anomalies, and the brakes were determined to be functioning properly.