Flight Details
The pilot, the sole occupant, departed from Tapachula Airport on a local flight to release Mediterranean flies. A flight plan of four hours was filed, with a planned altitude of 9,500 feet. The flies were intended to be released in an area located 60 to 100 nautical miles around the Tapachula VOR.
Accident Sequence
Shortly after takeoff from Runway 05, while climbing to an altitude of approximately 1,000 feet, the pilot reported engine problems. The aircraft then turned to the right and entered an uncontrolled descent, ultimately crashing in a mango plantation. The airplane was destroyed, and the pilot was killed.
Probable Cause
The official investigation determined the probable cause was impact of the aircraft against the ground during a tight turn towards the side of the right engine, which showed inadequate performance. The following contributing factors were identified: continuing the flight despite intermittent failures in the fuel flow of engine number 2, failure to adhere to the abnormal engine failure procedure during takeoff, and fatigue fracture of the fuel pump shaft of engine number 2.