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ASN Wikibase Occurrence # 273164
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Type:Silhouette image of generic EXEC model; specific model in this crash may look slightly different
RotorWay Exec 162F
Registration: ZU-DCI
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:1nm outside the boundary fence of Stellenbosch Aerodrome -   South Africa
Departure airport:Stellenbosch Aerodrome
Destination airport:Stellenbosch Aerodrome
Investigating agency: CAA SouthAfrica
Confidence Rating: Accident investigation report completed and information captured
The pilot stated that on 23 March 2005 at approximately 1300Z, he was accompanied by a passenger on a local private flight to the Stellenbosch general flying area (GFA). After hovering for approximately one minute, he flew to the south of Runway 01/19 at Stellenbosch Aerodrome and then climbed to a height of 1200ft AGL before starting the crosswind and downwind leg. All the engine parameters were reading normally at the time. On base leg, he noted a reduction in the engine RPM followed by a slight vibration. Shortly thereafter, the engine failed. The pilot then had to turn downwind over pine trees in order to execute an auto rotational landing onto an open field just outside the Stellenbosch Aerodrome boundary fence. He then flared the helicopter at approximately 40ft AGL at an IAS of 10mph and raised the collective in order to cushion the landing. Due to a tail wind component, the helicopter touched down at an IAS of approximately 25mph. The helicopter then skidded for a distance of approximately 10m whereupon the front skids dug into the soft soil causing the helicopter to pitch forward. As a result, the main rotor blades severed the tail boom assembly. The main rotor blades including the tail boom and tail rotor were extensively damaged during the accident. The pilot and passenger escaped without any injuries. A 75 hour Inspection was certified on the aircraft on 3 January 2005. Subsequent to the 75 hour inspection, a further 12.4 hours were flown. The total time on the aircraft at the time of the accident was thus 87.4 hours. The pilot was in possession of a valid license and was type rated on the helicopter. PROBABLE CAUSE: The earth strap leading from the ignition modules was found incorrectly bolted onto the circumference of the left-hand seat frame with a smaller diameter bolt causing insufficient earth contact.



Accident investigation:
Investigating agency: CAA SouthAfrica
Status: Investigation completed
Download report: Final report

Revision history:


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