Accident Summary
The airplane sustained substantial damage during a forced landing in a wooded area. The event occurred after a loss of engine power while the aircraft was descending for landing.
Pilot Actions
The pilot reported an electrical system failure during the flight. Approximately 12 to 15 nautical miles from the destination airport, he switched the master switch off to conserve battery power. About 5 to 6 nautical miles from the destination, the engine lost power. The pilot then switched fuel tanks and turned the master switch and electric fuel pump on. According to the pilot, engine power was restored for about 10 to 15 seconds, after which the battery was completely drained and the engine stopped.
Postaccident Examination
Postaccident examination revealed that the mechanical fuel pump would not pump fuel when the engine was cranked using the starter. Additionally, the fuel pump would not pump fuel unless the fuel pump's plunger was moved beyond the normal travel range. No determination was made as to the nature of the electrical system failure.