What happened
On September 25, 2018, a Cessna A-188-B, registration LV-ZPB, was performing agricultural spraying operations near Villalonga, Buenos Aires. The flight departed from a field approximately 20 km east of the town, heading toward another location 18 km northwest of the area.
During the mission, the aircraft struck a low-voltage electricity pole. The impact caused the pilot to lose control, leading the aircraft to strike the ground approximately 92 meters from the pole. The aircraft's right wing and nose made contact with the terrain, and the wreckage slid for a total of 120 meters before coming to a stop. The collision resulted in one fatality; the pilot was not wearing a seatbelt or shoulder harness at the time of the impact. The aircraft sustained substantial damage, including a destroyed fuselage and significant damage to the engine and propeller.
The investigation
The investigation examined the aircraft's mechanical condition, the environmental factors, and the pilot's regulatory compliance. Investigators found that the engine and propeller were under power at the moment of impact and that the flight controls were fully functional prior to the accident. Fuel samples confirmed the use of appropriate 100 LL avgas.
Regarding the pilot's credentials, the investigation established that the pilot's documentation was not in compliance with current regulations, as he lacked a valid aeronautical medical certificate. Furthermore, the operation was not conducted under a certified Air Agricultural Operator Certificate (CETA), which is required by Argentine Civil Aviation Regulations (RAAC 137).
Findings
- The pilot failed to execute any evasive maneuvers, suggesting the electricity pole was either not seen or detected too late to avoid.
- The position of the sun likely contributed to the failure to detect the obstacle.
- The pilot was operating without a valid medical certificate.
- The agricultural spraying operation was being conducted in violation of established regulatory frameworks for airwork.