Event Sequence
The pilot reported conducting a preflight inspection that included checking for water in the fuel. The fuel tanks were partially full, with 17 gallons in each. A pre-takeoff engine runup was normal. During the initial takeoff climb, the engine experienced a partial power loss. After being unable to correct the problem, the pilot ditched the aircraft in a nearby creek.
Investigation Findings
The investigation revealed that the liquid content in the carburetor was half fuel and half water. The carburetor was drained, and the engine operated normally after three unsuccessful attempts that resulted in about one minute of operation before it stopped by itself. A chemical test of the liquid content of the carburetor disclosed that 23 volume percent of the water was not creek water.
The source did not specify the aircraft type, registration, engine count, date, operator, location, occupants, injuries, damage items, time of day, weather conditions, or ATC involvement. No probable cause was stated.