Accident Overview
The pilot of an airplane reported that the landing touchdown and rollout were normal for about 300 feet. As the pilot applied the brakes, the left brake failed, causing the airplane to swerve to the right and depart the side of the runway.
Evasive Maneuver
Due to the presence of people and equipment near the runway and in the aircraft's path, the pilot utilized nose wheel steering and right throttle control to redirect the aircraft. The airplane continued about 80 feet over freshly graded terrain before entering an open field covered with tall grass.
Collision
The aircraft subsequently collided with a ditch and then with an abandoned truck before coming to rest.
Post-Accident Inspection
Shortly after the accident, the brake system was inspected. It was found that the left brake pedal would make full travel with no apparent braking action. After applying pumping action, there was a gradual rise of the pedal and braking action. Further inspection of the system did not reveal any mechanical failures or malfunctions. The brake lines were then bled, and a considerable amount of air bubbles were noted.
Probable Cause
No probable cause was determined in the source.