What happened
On 0 November 2010, a Piper PAJ3 Cub, registration ZS-AWJ, departed Rand Aerodrome for a local private flight. Approximately 45 minutes into the flight, the pilot attempted to perform a flypast over the Henley Aero Modelling Club near Meyerton, traveling in an easterly direction.
During the approach, the pilot successfully identified and avoided telephone wires running alongside a road. However, the pilot failed to detect power lines positioned further ahead. The aircraft's undercarriage struck and snagged the upper power line, which caused the aircraft to pitch downward. The tension caused the line to snap, and the aircraft subsequently struck a grass surface at a 30-degree nose-down angle. The aircraft traveled approximately 10 metres before coming to a halt.
The investigation
The SACAA AIID investigation examined the circumstances surrounding the impact and the condition of the aircraft. The inquiry confirmed that the pilot was properly rated, held a valid license, and was medically fit for the flight. The aircraft was also found to have a valid certificate of airworthiness.
Investigators found no evidence of mechanical or engine failure contributing to the event. Meteorological data indicated fine weather conditions with good visibility and no significant wind interference. The investigation also noted that the pilot was properly restrained by safety harnesses, which contributed to the survival of the impact.
Findings
- The pilot flew too low to the ground while executing the planned flypast.
- The aircraft's undercarriage made contact with an upper power line, leading to the subsequent nose-down impact.
- The pilot successfully avoided telephone wires but failed to notice the higher-tension power lines.
- The pilot sustained minor injuries, while the aircraft suffered substantial damage to the propeller, fuselage, and undercarriage.