Incident Overview
A pilot with approximately 800 hours of flight experience was conducting a cruise flight when he detected the smell of fumes and the engine began to shudder. Despite the unusual sensations, all engine gauges indicated normal readings. The shuddering continued, and within seconds, the oil pressure dropped to zero. The engine subsequently lost power, and the pilot was unable to maintain altitude.
Emergency Landing and Damage
Realizing the need for an immediate landing, the pilot executed a forced landing to a dirt field. During the landing roll, the airplane traveled about 78 feet before nosing over onto its back. Post-incident examination of the aircraft revealed oil streaks on both the left and right sides of the engine cowling, indicating a significant oil leak.
Examination Findings
A thorough investigation of the engine and its maintenance records showed that a recently installed generator had partially separated. This separation was due to improper installation, which ultimately led to oil starvation within the engine. No other mechanical anomalies were noted, and the pilot's actions in response to the emergency were consistent with standard procedures for a power loss event.