What happened
The aircraft lost engine power while in the takeoff phase of flight. Due to the sudden loss of thrust, the pilot was unable to continue the climb and was forced to execute an emergency landing in a nearby muddy field.
The investigation
Following the incident, a certified flight instructor (CFI) examined the fuel system. After refueling the aircraft, the CFI checked a sightglass for water contamination but reported that no water was visible at that time. Subsequent inspection by the Federal Aviation Administration (FAA) revealed significant water accumulation in both the aircraft's fuel filter and its tanks.
Findings
Further investigation identified the source of the contamination. Inspectors discovered approximately four inches of water within the airport's storage tank used to refuel the aircraft. This contaminated fuel was the likely cause of the engine power loss.
water in the fuel system
The presence of free water in the fuel supply led to engine malfunction, necessitating the emergency landing.