Fatal Helicopter Crash in Rooiwal Following Engine Failure

Casualties unknown • House No. 78 Second Street, Rooiwal Approximately 5NM north of FAWB, ZA

A Robinson R22 Beta helicopter crashed into a residential backyard in Rooiwal, resulting in two fatalities after striking a tree during low-level flight.

What happened

On 02 November 2010, a Robinson R22 Beta helicopter, registration ZS-RNN, was conducting a private flight near Wonderboom Airport (FAWB). The flight was intended to assist the owner in preparing for a private pilot license renewal. After departing from FAWB to the general flying area, the aircraft was observed by witnesses flying at an extremely low altitude, approximately 50 meters above residential buildings.

While flying south towards the airport, the helicopter performed a turn back toward its previous direction. During this maneuver, the aircraft struck a tree and entered a steep, 45-degree descent. The helicopter crashed into the backyard of a residence in the Rooiwal area. The impact was followed by a post-crash fire that destroyed the aircraft. Both occupants, a commercial pilot and the owner, sustained two fatalities.

The investigation

SACAA AIID investigators examined the wreckage and the engine components to determine the sequence of events. The investigation focused on the aircraft's flight path, the condition of the engine, and the compliance of mandatory service bulletins. Witnesses provided accounts of the aircraft flying low over built-up areas, appearing to search for a landing spot before the accident occurred.

Technical analysis of the engine was conducted at an approved maintenance organization. Because the engine sustained significant damage, a teardown was performed. Investigators looked for evidence of mechanical failure or lack of maintenance compliance. The investigation also reviewed the pilot's credentials, confirming the pilot held a valid commercial helicopter license and medical certificate.

Findings

  • The aircraft was flying at a low altitude over a built-up area, which is contrary to civil aviation regulations regarding flight over populated zones.
  • The crash site was located in a residential backyard, and the impact with a tree preceded the final ground impact.
  • The engine was not operating at the time of the impact.
  • The accident was not survivable due to the combination of the high-angle impact and the subsequent intense fire.
  • There were no significant weather factors contributing to the accident, as conditions were clear for visual flight rules.

Probable cause

The helicopter struck a tree while performing low-level maneuvers over a built-up area, with an inoperative engine serving as a significant contributing factor.

Frequently asked questions

What happened in the 2010-11-02 Robinson R22 Beta accident near House No. 78 Second Street, Rooiwal Approximately 5NM north of FAWB, ZA?

A Robinson R22 Beta helicopter crashed into a residential backyard in Rooiwal, resulting in two fatalities after striking a tree during low-level flight.

What aircraft was involved and where did it happen?

The accident on 2010-11-02 involved a Robinson R22 Beta, registration ZS-RNN, at House No. 78 Second Street, Rooiwal Approximately 5NM north of FAWB, ZA.

What was the probable cause of the accident?

The helicopter struck a tree while performing low-level maneuvers over a built-up area, with an inoperative engine serving as a significant contributing factor.

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