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A Twin Squirrel helicopter was approaching Sydney Airport on a St Peters 2 Inbound helicopter route. As the helicopter approached the airport maintenance area, the pilot advised the aerodrome controller that he had a hydraulic problem and requested a fire tender to meet him on arrival. As this was being arranged, the pilot further advised that there was now a strong smell of hydraulic fluid in the cabin and requested confirmation that a fire tender was awaiting his arrival. However, as the helicopter passed over runway 25, the pilot advised that he had lost hydraulic power to the tail rotor and was landing immediately. The helicopter landed safely on helipad 03. There was no fire or reported damage to the helicopter. A ground inspection of the helicopter revealed that the right hydraulic system fluid reservoir outlet flange had cracked, resulting in loss of contents and subsequent loss of tail rotor control. The operator has submitted a Major Defect Report to the Civil Aviation Safety Authority.
Download Final Report
[ Download PDF: 14KB]
General details
Date: 26 February 1998 Investigation status: Completed 
Time: 14:25 ESuT  
 Investigation type: Occurrence Investigation 
 Occurrence type: Hydraulic 
Release date: 03 March 1998 Occurrence class: Technical 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: Aerospatiale Industries 
Aircraft model: AS.355F1 
Aircraft registration: VH-UEE 
Sector: Helicopter 
Damage to aircraft: Nil 
Departure point:Sydney NSW
Destination:Sydney NSW
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Last update 16 November 2015