Incident Overview
A flight instructor (CFI) reported that the purpose of the flight was to perform a biennial flight review. After completing two uneventful touch-and-go takeoffs and landings, the pilot attempted a third. The airplane was configured for a power-off landing, and all three landing gear lights in the cockpit were illuminated, indicating that the landing gear was in a down and locked position.
Sequence of Events
Upon touching down on the runway, the airplane veered to the right. The CFI felt as though the airplane was sinking on the right side. The right main landing gear collapsed, and the airplane came to rest on its left main landing gear with the right gear in the retracted position.
Post-Accident Examination
The airplane was examined immediately after the accident by an A & P mechanic. The airplane was placed on jacks, and the gear was cycled several times using the airplane's hydraulic system and the electrically driven hydraulic pump. No defects or faults were found that could have resulted in a failure of the right gear to extend and lock. Later, a detailed landing gear extension/retraction functional test was conducted with no discrepancies noted.