What happened
On February 6, 2008, at approximately 20:45 UTC, a Neiva EMB-201A, registration PT-GUT, was performing agricultural spraying operations in a rice plantation near São Sepé, Rio Grande do Sul. The aircraft was engaged in applying urea when it struck the ground. The impact began with the right landing gear hitting the terrain, followed by the left gear, causing the aircraft to break apart violently. The force of the impact destroyed the spraying equipment and damaged the fuselage. The pilot was ejected from the aircraft due to the structural failure of the nacelle and died at the scene.
The investigation
CENIPA investigators examined the wreckage and the circumstances surrounding the flight. The investigation established that the aircraft was within weight and balance limits and held a valid Certificate of Airworthiness. While the pilot held valid medical and agricultural pilot certifications, the investigators could not verify the pilot's specific experience level for this type of mission due to unavailable records.
Analysis of the propeller showed it was feathered or stopped without power, suggesting an engine failure. Investigators identified that the fuel pump was found in the off position, which contradicted manufacturer procedures for agricultural operations. Furthermore, evidence suggested the use of ethanol as fuel in an aircraft that lacked a proper conversion kit. Although a post-mortem report indicated the presence of ethyl alcohol in the pilot's system, the investigation could not definitively determine if alcohol consumption played a role in the accident.
Findings
- The aircraft struck the ground during the final pass of the spraying operation.
- The fuel pump was left off, which significantly increased the risk of engine power loss.
- The use of ethanol in an aircraft not equipped for it likely contributed to fuel delivery issues.
- The pilot's judgment and attitude regarding flight controls and procedures were contributing factors.
- The pilot was ejected from the cockpit due to the intense torsional forces and structural breakup during the impact.