What happened
On May 17, 2003, a Jabiru SP microlight, registration ZU-CJF, was conducting a private flight from Virginia toward Piet Retief. During the flight, the pilot encountered unfavorable weather conditions, necessitating a diversion to Newcastle. While performing the down-wind leg for Runway 11, the engine began operating roughly. In response to the engine issues, the pilot initiated a base leg turn earlier than standard procedure to execute a tight approach to the runway.
As the aircraft approached the runway, the pilot maintained a speed that was too high for the configuration. The aircraft subsequently touched down with the nose and main undercarriage making contact with the runway at the same time. This impact caused the nose gear to collapse, resulting in substantial damage to the airframe.
The investigation
The investigation examined the mechanical state of the aircraft and the pilot's actions during the emergency diversion. Records indicated that the ZU-CJF was well-maintained, having flown only 125 hours since its manufacture and only 25 hours since its last annual inspection. The pilot's flying experience on the type was recorded at 101.7 hours. The investigation also reviewed meteorological data, which noted overcast conditions with a light, variable 5-knot wind at the time of the incident.
Findings
- The engine's rough running was attributed to carburetor icing.
- The pilot's decision to fly a tight approach, combined with excessive approach speed, led to an improper touchdown.
- The simultaneous impact of the nose and main landing gear was the direct trigger for the structural failure of the nose undercarriage.