Engine Power Loss During Climb
The aircraft had been flown only about 2.5 hours during the previous 7 months and was parked outdoors when not in use. Before the flight, the student pilot and her husband started the engine to check the battery. The instructor pilot reported that the sumps were drained and fuel samples examined, with no water or other contamination found. The engine functioned normally during start, taxi, and the before-takeoff check, and had been operating for approximately 15 minutes before takeoff.
Forced Landing and Damage
While climbing through about 300 ft above ground level, the engine suddenly lost power. During the forced landing roll-out, the aircraft struck a levee, resulting in damage.
Post-Accident Examination
An examination of the aircraft revealed water in the fuel system. A mechanic estimated over half a pint of water in the carburetor, about 1 pint drained from the right fuel tank, and about half a pint drained from the left tank. The fuel cap O-rings were found to be worn, which would allow water to seep through. Additionally, wrinkles rising approximately 3/8 inch were found in the bottoms of the fuel tank bladders.