What happened
The aircraft was engaged in agricultural spraying operations when the incident occurred during the final swath run of the day. According to the pilot's statement, the left outboard section of the wing struck a light pole. This collision caused the wing section to separate from the airframe and jammed the aileron control surface.
Following the impact, the aircraft became uncontrollable. It crashed into an open field nearby. The force of the impact caused the aircraft to cartwheel before it finally came to rest. Post-accident inspection revealed that the aircraft's windshield was coated with spray material. Additionally, the angle of the sun created significant glare, which interfered with the pilot's ability to see clearly during the operation.
The investigation
The investigation focused on the mechanical failure and environmental conditions present at the time of the crash. Examination confirmed that the left outboard wing section had separated due to the collision with the light pole. The jamming of the aileron was identified as the primary mechanical issue preventing recovery.
Findings
Several factors contributed to the accident. The pilot's visibility was compromised by two main elements: spray coating on the windshield and glare from the sun angle. These visual obstructions likely prevented the pilot from seeing the light pole in time to avoid collision. The subsequent separation of the wing section and jamming of the aileron rendered the aircraft uncontrollable.
Safety message
Pilots conducting low-level agricultural operations should be aware of the potential for glare and spray accumulation on windshields. Regular checks and use of defogging or anti-glare measures may help maintain situational awareness near obstacles such as utility poles.