What happened
The pilot reported that the aircraft experienced a sudden loss of engine power shortly after takeoff from Kalispell Airport. Despite attempting standard emergency procedures to restore power, the pilot was unable to restart or recover the engine. Consequently, a forced landing was executed in an open field near the airport. The impact resulted in damage to the airplane.
The investigation
A post-crash examination of the aircraft focused on the fuel system components. Inspectors discovered significant contamination within the fuel tanks, specifically identifying dirt and sand particles. Additionally, the fuel filter screens were found to be obstructed by foreign matter, which likely restricted fuel flow to the engine.
Findings
The mechanical evidence points directly to fuel system contamination as the primary factor in the power loss. The presence of dirt and sand in the tanks and the obstruction of the filter screens prevented proper fuel delivery. This failure occurred during the initial climb phase, leaving insufficient altitude for recovery.
Safety message
Regular inspection and maintenance of fuel systems are critical to preventing foreign object contamination. Ensuring that fuel filters are clean and tanks are free of debris can help avoid in-flight engine failures.