Incident Overview
A pilot reported that a landing was normal until touchdown. Upon applying wheel brakes, both brake pedals traveled fully downward without resistance. By rapidly pumping the brakes, the pilot was able to restore partial braking action only from the right brake.
Sequence of Events
Realizing that the aircraft could not be stopped on the 2,700-foot runway and that insufficient distance remained to attempt a go-around, the pilot intentionally allowed the aircraft to veer to the right. The aircraft departed the runway surface and ground-looped in a run-up area.
Brake System History
According to the pilot, the brakes had functioned properly during two previous landings earlier that same morning. No preexisting brake issues were noted before the flight.
Investigation Findings
The cause of the brake failure could not be determined. No mechanical discrepancies or anomalies were identified in the brake system during post-incident examination that would explain the sudden loss of braking effectiveness.