What happened
The aircraft experienced an immediate loss of engine power just after initiating takeoff. Unable to maintain altitude, the pilot executed a forced landing in an adjacent field. During the landing maneuver, the airplane collided with uneven ground and rough terrain, resulting in significant structural damage.
The investigation
A thorough inspection of the aircraft's propulsion system was conducted to determine the root cause of the power loss. Mechanics discovered evidence of corrosion within the main fuel sump bowl and on the fuel injection throttle body fuel screen. Further examination revealed that the main fuel sump bowl screen had been damaged during previous maintenance and was installed upside down, obstructing proper fuel flow.
Findings
The investigation confirmed there were no other mechanical failures or malfunctions present in the aircraft at the time of the accident. The primary factor contributing to the event was the improper installation of a critical fuel system component. This error led to restricted fuel delivery and subsequent engine failure during a critical phase of flight.
Safety message
This incident highlights the importance of strict adherence to maintenance procedures for fuel system components. Proper orientation and condition of fuel screens are vital for ensuring uninterrupted fuel flow and preventing in-flight engine failures.