What happened
On 21 March 2001, a Cessna 172E, registered ZS-ETJ, was conducting a private flight from Lanseria towards Margate. While flying near Paddock, close to Port Shepstone, the aircraft experienced a sudden engine failure. In response to the loss of power, the pilot performed a forced landing on an abandoned grass airstrip. While there were no fatalities, the pilot sustained serious injuries, and the aircraft suffered extensive damage.
The investigation
SACAA AIID investigators examined the circumstances surrounding the flight and the mechanical state of the aircraft. The inquiry established that the aircraft was not in a legal state of airworthiness, as its maintenance program was significantly overdue; specifically, the periodic inspection (MPI) had been exceeded by nearly two years. Furthermore, the investigation revealed that the aircraft lacked a valid Certificate of Airworthiness and a Certificate of Safety.
Beyond the mechanical state, the investigation looked into the pilot's operational conduct. It was noted that the pilot demonstrated a lack of proficiency regarding radio telephony procedures. Additionally, the aircraft owner claimed that the pilot had operated the aircraft without authorization.
Findings
- The primary cause of the engine failure was fuel contamination, as the airframe fuel filter was found to contain approximately 75% contaminated fuel.
- Adverse weather conditions were present at the time of the accident.
- The aircraft was being operated without a valid Certificate of Airworthiness or Certificate of Safety due to overdue maintenance.
- The pilot failed to adhere to established radio telephony procedures.
- There were significant regulatory non-compliance issues regarding the unauthorized use of the aircraft and violations of specific SA-CARS regulations.