What happened
On 07 January 2012, a Cessna 150, registration ZS-NBW, departed Port Elizabeth Aerodrome for a flight to the general flying area. The pilot, who was flying in a private capacity to accumulate hours for a commercial pilot's license, was accompanied by a passenger. The flight was intended to include practice maneuvers such as stalling, advanced turning, and simulated forced landings.
While flying over Syfergat Farm, approximately 8km north of Uitenhage, the aircraft entered a spin. An eyewitness on the farm observed the aircraft exhibiting spinning characteristics before it impacted a flat, grassy area. The impact was severe, causing extensive damage to the airframe and resulting in two fatalities.
The investigation
SACAA AIID investigators examined the wreckage and found that the aircraft's weight and balance were well within safe limits, and there was sufficient fuel on board for the planned mission. Meteorological conditions at the time were fine, with clear skies and light winds.
Analysis of the wreckage pattern—including compression on the left side of the fuselage and the left wing root, alongside tension on the right wing—was consistent with a typical left-hand spin. Examination of the engine and propeller revealed that the engine was at an idle power setting at the moment of impact. Furthermore, the right rudder pedal was found fully depressed, suggesting an attempt at recovery.
Findings
- The aircraft entered a spin at a low altitude from which recovery was impossible due to the lack of sufficient height.
- The pilot was performing maneuvers intended to practice stalling and advanced turns.
- The pilot had not practiced spin avoidance in this specific aircraft for approximately eight months prior to the accident.
- The aircraft was operating within its weight and balance limits and was airworthy.