What happened
On 29 August 2007, a Tecnam P92-S Echo, registration ZU-DMT, was conducting a training flight from Rand Aerodrome (FAGM) to the general flying area. During the return leg, while the pilot was on final approach for runway 35, the engine ceased operation. The pilot immediately issued a Mayday call to the Rand tower. Because the aircraft was positioned too far from the runway to complete a standard landing, and after unsuccessful attempts to restart the engine, the pilot executed a forced landing in an open field in Lambton, Germiston. During the descent, the aircraft struck a rock before coming to a stop. The pilot, who was a student with 36.9 total flying hours, sustained no injuries.
The investigation
SACAA AIID investigators examined the wreckage and the aircraft's mechanical systems to determine the cause of the engine failure. The investigation confirmed that the aircraft had been maintained according to regulations, with the last inspection completed approximately 76 hours prior to the event. While the airframe sustained substantial damage to the wings and fuselage from the impact, the cabin remained intact.
Technical examinations focused on the engine and fuel delivery systems. The Rotax 912 ULS engine was later bench-tested and found to be functioning correctly, ruling out internal mechanical failure. Investigators also inspected the fuel lines, filters, and fuel quality, finding no blockages or contamination. However, upon inspecting the carburettors, investigators found the bowls to be dry. The investigation noted that the fuel system's circuit on/off valves, which are easily accessible to the pilot in the cabin, were a primary area of interest.
Findings
- The engine stopped because of fuel starvation.
- The pilot was properly licensed and qualified for the training flight.
- The aircraft was maintained in accordance with approved procedures.
- Weather conditions, including visibility and wind, were not contributing factors to the accident.