Narrative
According to the pilot, approximately 45 minutes after departure, while cruising at an altitude of 3,000 feet, the engine lost power. The pilot attempted to restore full engine power but was unsuccessful. Selecting a nearby pasture for an emergency landing, the pilot maneuvered the airplane toward the field. During the approach, the airplane collided with trees.
Investigation
Post-accident examination of the engine revealed that the number 2 cylinder rod cap was broken. Additionally, no oil was found in the engine, and the oil sump was dry. A review of the Piper Cherokee 140 owner's handbook, Section VI (Oil Requirements), states that the capacity of the O-320 series engine is 8 quarts, with a minimum safe quantity of 2 quarts. Section III (Preflight) directs the pilot to check for obvious fuel or oil leaks and to check the oil level, with a maximum of 8 quarts. The pilot did not report finding any problems with the airplane during the preflight inspection.
Findings
- The engine lost power approximately 45 minutes into the flight at 3,000 feet.
- The pilot was unable to restore power and chose a pasture for an emergency landing.
- The airplane struck trees during the landing attempt.
- The number 2 cylinder rod cap was broken, and the engine was devoid of oil.
- The owner's handbook specifies oil capacity and preflight checks.
- The pilot reported no preflight anomalies.