Incident Overview
An aircraft was observed flying southbound over the ocean at an altitude of approximately 300 feet and about 200 yards from the shoreline. Witnesses reported hearing the engine sputter and lose power. The aircraft then executed a right 90-degree turn toward the beach.
Final Maneuvers
After reaching the beach, the aircraft initiated a left turn, followed by a nose-down descent. It subsequently crashed on the beach. No further details about the flight path or control inputs were provided in the investigation.
Postcrash Examination
A postcrash examination of the engine revealed that the No. 5 cylinder master rod and the connecting rods from cylinders Nos. 1, 4, and 6 had failed. The examination found no evidence of oil starvation or excessive heating within the engine. The specific cause of the connecting rod failures was not determined.
Investigation Findings
The investigation concluded that the engine experienced a mechanical failure involving multiple connecting rods, but the root cause of these failures could not be identified based on the available evidence. No other contributing factors were noted in the report.