What happened
During the initial climb phase following takeoff, the pilot experienced a complete loss of power to both engines. The pilot attempted to return to the runway but was unable to reach the airport. The aircraft subsequently impacted trees and the ground. The pilot managed to exit the aircraft unassisted, and shortly thereafter, the wreckage was engulfed in flames.
The investigation
An examination of the left engine revealed approximately 9.3 oz of water and about 2.1 oz of a blue liquid consistent with 100LL aviation fuel. Water was also discovered within the fuel pump of the left engine. Due to thermal damage, the carburetor and fuel system of the right engine could not be examined. Airport personnel noted that the aircraft had been parked outside during a rain storm since its previous flight.
Findings
While the pilot reported that no water contamination was observed during the preflight inspection of the six fuel drains, investigators found water contamination within the left engine's fuel system.