What happened
While conducting an aerial application run, the aircraft's engine suffered a total failure resulting in a complete loss of power. Faced with this emergency, the pilot made the decision to execute a forced landing in a nearby alfalfa field situated adjacent to the flight path.
The initial touchdown within the field was successful; however, the situation escalated as the aircraft continued to roll across the ground. To prevent a collision with an irrigation system located within the field, the pilot initiated a ground loop maneuver. This action, while effective in stopping the aircraft's forward momentum, resulted in significant damage to the airframe.
The investigation
The investigation focused on the sequence of events leading to the forced landing and the subsequent damage. Investigators examined the condition of the aircraft following the incident to determine the extent of the damage caused by the ground loop maneuver. The primary mechanical finding was that the engine experienced a complete loss of power during the operation, which necessitated the emergency landing.
Findings
The analysis revealed several contributing factors to the outcome of the event. The initial trigger was the engine's failure during the aerial application run. The pilot's decision to land in an alfalfa field was a direct response to this mechanical failure. Furthermore, the presence of an irrigation system in the landing zone constrained the available space for stopping the aircraft safely.
The ground loop maneuver, executed to avoid the irrigation infrastructure, was the direct cause of the structural damage sustained by the aircraft. The pilot successfully prevented a more severe collision with the fixed object but could not avoid damage to the aircraft itself during the emergency stop.