Accident Eurocopter AS 350B3 Ecureuil ZS-RWG, Thursday 21 November 2024
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Date:Thursday 21 November 2024
Time:09:23 UTC
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different    
Eurocopter AS 350B3 Ecureuil
Owner/operator:Ultimate HELI, opf Gauteng Traffic Police
Registration: ZS-RWG
MSN: 3773
Total airframe hrs:4419 hours
Engine model:Turbomeca Arriel 2B
Fatalities:Fatalities: 0 / Occupants: 3
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Centurion -   South Africa
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Aerial patrol
Departure airport:Ultimate Heliport
Destination airport:Ultimate Heliport
Investigating agency: CAA S.A.
Confidence Rating: Information verified through data from accident investigation authorities
Narrative:
A pilot and two passengers on-board an Eurocopter AS 350B3 Ecureuil helicopter with registration ZS-RWG took off from Ultimate Heli in Midrand to conduct surveillance in the east of Pretoria with the intention to return to Ultimate Heli.
On their return leg at approximately 09:23Z whilst the helicopter was 400 feet above ground level, the pilot heard a loud sound (gong) which was followed by an engine failure. The Vehicle and Engine Monitoring Display (VEMD) indicated that the engine torque and engine power available (NG) were offline as they were on the yellow arc. As the main rotor revolutions per minute (RPM) decreased to about 360, the pilot initiated an autorotation heading south-west. The helicopter descended rapidly and the pilot identified a suitable area on which to conduct a forced landing. The helicopter impacted the ground hard with the left skid and slid on the grass before it stopped 20 metres from the first point of impact. After it had stopped, the pilot immediately shut down the critical electrical systems, including the fan and gyroscope; he let the main rotors slow down before applying rotor brake. Once the rotors had stopped, he switched off the battery and evacuated the helicopter with the passengers. Preliminary findings suggested a potential Electrical Control Unit (ECU) failure that may have contributed to the malfunction of the fuel control unit.

Accident investigation:
cover
  
Investigating agency: CAA S.A.
Report number: 
Status: Preliminary report
Duration:
Download report: Preliminary report

Sources:

Fly Africa Facebook Group

Revision history:

Date/timeContributorUpdates
22-Nov-2024 14:33 Anon. Added
09-Dec-2024 08:23 ASN Updated [Aircraft type, Cn, Location, Departure airport, Destination airport, Narrative, ]
20-Dec-2024 11:33 ASN Updated [Time, Operator, Total occupants, Narrative, Accident report, ]

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