Accident Sequence
The pilot departed on runway 31 at approximately 1415, with the takeoff proceeding normally. At about 1,500 feet above ground level, the pilot reduced the throttle for cruise, reduced the propeller control, and adjusted the fuel mixture. Shortly thereafter, the manifold pressure dropped rapidly to approximately 15 inches of mercury. Suspecting a vapor lock in the fuel line, the pilot switched fuel tanks and turned on the auxiliary fuel pump. Despite these actions, the engine lost power, and the propeller continued to windmill. The pilot then pressed the boost pump switch and pulled the throttle out about an inch, but the engine did not restart. Subsequently, the pilot performed a forced landing to a field. During the landing attempt, the airplane sustained substantial damage and was later consumed by fire.
Investigation Findings
Postaccident examination of the airframe and engine revealed no anomalies that could have affected the airplane's performance prior to the accident. Inspection of the spark plugs showed that eight were black and sooty, while four were wet. A witness who observed the takeoff reported that the airplane trailed dark smoke during its takeoff roll and climb out.