Preflight Actions
In preparation for a night cross-country flight, the pilot and a mechanic drained over 32 ounces of water from the wing tanks and carburetor/fuel system. The mechanic reported that the draining and flushing were performed according to the manufacturer's recommendations. The pilot then refueled the airplane with 88 gallons of fresh aviation gasoline and waited 10 to 15 minutes before checking the wing and belly sumps for water. No water was found, and the pilot proceeded with the flight.
Flight and Forced Landing
Approximately three hours after departure, the pilot experienced a loss of engine power. A forced landing was made in trees. No details regarding injuries or damage were provided.
Post-Accident Inspection
Examination of the carburetor and fuel system after the accident revealed significant quantities of water. The fuel tank from which the airplane had been refueled prior to the flight was found to be free of significant contaminants. When fresh, uncontaminated fuel was supplied to the engine, it started and ran normally.