Accident Sequence
During cruise flight, the pilot observed a loss of oil pressure. This was followed by a partial loss of engine power. In response, the pilot turned the aircraft toward the nearest land and initiated a forced landing. However, when it became apparent that the aircraft would not reach land, the pilot performed a ditching maneuver, landing the airplane in the sea.
Examination Findings
After the aircraft was recovered, a detailed examination of the engine was carried out. The inspection revealed that the No.1 piston connecting rod had failed. The failed connecting rod had penetrated the engine crankcase, causing visible damage.
Cause Determination
The investigation sought to determine the reason for the connecting rod failure. However, the fracture surfaces of the rod were destroyed during the failure sequence. Due to this destruction, the specific cause of the failure could not be determined.