Accident Sequence
The aircraft departed and climbed to approximately 500 feet above ground level when the engine smoothly lost power. Moments later, engine power briefly returned, then dropped off, surged, and finally ceased completely. The pilot, who was flying, attempted to return to the runway but lacked sufficient altitude. The aircraft subsequently collided with a fence at the approach end of runway 24.
Pilot Actions
According to the pilot, a preflight inspection was conducted in accordance with the Pilot's Operating Handbook, and no abnormalities were detected.
Post-Accident Examination
An Federal Aviation Administration airworthiness inspector examined the aircraft. The gascolator bowl was found half full of water, and the carburetor bowl was completely full of water. However, no water was discovered in either fuel tank when the sump drains were checked. The engine was started and operated for a 10-minute period with no abnormalities noted.
Additionally, the FAA inspector observed that the left fuel tank cap O-ring was deteriorated, and rust and corrosion were present below the level of the O-ring.
Background Conditions
The aircraft was parked outside on the ramp. Heavy periods of rainfall occurred during the week prior to the accident flight. An annual inspection had been completed on the aircraft one month and three flight hours before the accident.