What happened
On June 14, 2019, an Ayres Thrush S2R-T34, registration N2016G, was performing agricultural spraying operations in the municipality of San José, Escuintla, Guatemala. The aircraft was operating out of the Polonia farm, tasked with dispersing herbicides over local crops. During the flight, the engine ceased functioning, forcing the pilot to perform an emergency landing on a nearby roadway. The pilot was able to exit the aircraft uninjured, and no third parties were harmed during the impact.
The investigation
The DGAC/UIA investigation focused on the mechanical state of the aircraft and the operational procedures regarding fuel management. Investigators examined the aircraft's maintenance logs, which showed the plane was airworthy and compliant with its maintenance program. Post-accident inspections of the flight controls and dynamic components revealed no mechanical malfunctions. However, a physical inspection of the fuel system, including the fuel control unit (FCU) filter and the fuel tanks, revealed that the aircraft had run out of fuel during the operation.
Findings
- The primary cause of the engine failure was fuel exhaustion resulting from improper fuel management.
- The aircraft's fuel system was found to be empty at the time of the investigation.
- Meteorological conditions and visibility were not contributing factors to the accident.
- The pilot was fully qualified and medically fit for the operation.
- There was no evidence of mechanical failure in the engine, propeller, or flight controls.