Incident Description
The aircraft touched down on the runway with both main wheel brakes locked, as evidenced by skid marks observed in the touchdown zone. After approximately 200 feet of skidding, the left brake released. However, the right brake remained locked, causing the pilot to lose directional control. The aircraft subsequently veered off the right side of the runway. During the excursion, both main landing gears collapsed.
Post-Crash Findings
A post-crash inspection of the aircraft revealed that both main tires bore skid marks, and the right tire had blown out. Examination of the brakes showed evidence of extreme overheating, to the point where the brake material had melted away. The brake pressure supply system was tested and appeared to operate correctly.
Pilot Statement
The pilot reported that during the last takeoff, the aircraft accelerated slowly, indicating a possible pre-existing issue with the braking system.