On September 8, 2001, a Cessna 177RG (registration N52043) was involved in an aviation accident near St. George, UT. Investigators recorded the probable cause as: brake system failure for reasons undetermined, which resulted in a loss of control on landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During landing roll, the left brake failed; the instructor pilot took over but was unable to prevent the airplane from departing the runway twice, striking a rock, and nosing over.
Accident Summary
A private pilot receiving instruction experienced a brake failure after landing. When the pilot applied the brakes, only the right brake operated; the left brake pedal went to the floor with no braking action. The instructor pilot then took control and began pumping the brakes in an attempt to restore system pressure.
Sequence of Events
The airplane departed the side of the runway but the instructor was able to return it to the runway surface. However, the aircraft again went off the side of the runway, sliding on gravel. During the slide, the airplane struck a rock and nosed over.
Post-Accident Examination
Post-accident examination revealed that the right brake assembly was damaged, which precluded a definitive assessment of its condition. No other mechanical anomalies were reported.