What happened
The incident occurred while an agricultural pilot was conducting crop dusting operations. The aircraft was aligned and preparing to begin a standard swath run when the engine began to lose power abruptly. The pilot immediately noticed a significant drop in both manifold pressure and oil pressure, accompanied by black smoke emitting from the exhaust system.
Faced with imminent engine failure, the pilot made a critical decision to turn away from the agricultural field rather than attempt a forced landing within it. This maneuver was taken specifically to avoid the risk of striking personnel who might be present in the area. The aircraft subsequently collided with trees as a result of this evasive action.
The investigation
The investigation focused on the mechanical state of the engine and the pilot's actions during the emergency. Evidence indicated that the loss of power was accompanied by black smoke, suggesting incomplete combustion or oil burning within the engine cylinders prior to failure. The simultaneous loss of manifold and oil pressure pointed to a severe internal mechanical issue.
Findings
The primary factor in this accident was the sudden loss of engine power during low-altitude operations. The pilot's decision to crash into trees was a deliberate choice to prioritize ground safety over aircraft preservation. The black smoke observed from the exhaust was a key indicator of the engine's deteriorating condition before total failure.
Safety message
This incident highlights the extreme risks associated with agricultural aviation, particularly during low-altitude maneuvers. Pilots must be prepared for sudden mechanical failures and have contingency plans that prioritize the safety of people on the ground above all else.