What happened
On 19 December 2007, a private flight departed from Bethlehem Aerodrome in the Free State Province, headed for Nottingham Road Aerodrome in KwaZulu-Natal. The flight took place during daylight hours under favorable meteorological conditions, characterized by fine weather and a 14-knot wind.
Shortly after takeoff, while the aircraft was still in its climbing phase, the pilot transitioned onto the crosswind leg. During this maneuver, the aircraft entered a stall and subsequently entered a spin. The pilot was unable to recover the aircraft from the descending spiral, which resulted in a crash near the aerodrome perimeter. The impact caused the fuel tanks to rupture, leading to an intense post-crash fire that destroyed the aircraft. The pilot sustained fatal injuries.
The investigation
SACAA AIID investigators examined the wreckage and the flight sequence to determine the cause of the accident. The investigation included a review of the engine, which had been inspected at a maintenance facility; no mechanical defects were found. Furthermore, the examination of the airframe showed no evidence of structural failure or malfunctions within the primary flight control systems prior to the impact.
Evidence from the site, supported by witness video footage, confirmed the aircraft was in a steep, nose-down configuration with a significant wing dip before striking a fence and the ground. The investigation also noted that the aircraft was not equipped with flight data or cockpit voice recorders, as they were not required for this type of operation.
Findings
- The primary cause of the accident was the pilot's application of poor takeoff technique during a crosswind maneuver.
- This technique led to an aerodynamic stall and an unrecoverable spin.
- There was no evidence of mechanical or engine failure contributing to the event.
- The severity of the impact and the resulting intense fire made the accident unsurvivable.