What happened
The aircraft experienced an unexpected loss of engine power while the pilot was maneuvering. Unable to maintain altitude or control, the pilot initiated a forced landing. The aircraft impacted a dirt bank and subsequently nosed over into soft dirt and mud during the landing sequence.
The investigation
Post-accident examination revealed significant contamination within the fuel system. Investigators found water present in the fuel lines and components. Further inspection identified that another aircraft, which had been refueled from the same storage tank as the accident aircraft, also contained water in its fuel tank. Analysis of the storage tank itself confirmed the presence of water, indicating a systemic contamination issue at the refueling location.
Findings
The primary factor leading to the incident was the presence of water in the fuel system, which caused engine failure. The contamination originated from the shared storage tank, affecting multiple aircraft. The resulting loss of power necessitated an emergency landing, during which the aircraft sustained damage from impacting the terrain.
Safety message
This incident highlights the critical importance of regular fuel quality checks and proper storage tank maintenance to prevent water accumulation in aviation fuel systems.