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As the helicopter was cruising at 1000 feet agl, the engine suffered a complete loss of power. An autorotation was commenced and the pilot headed the aircraft towards a clear area, to land. At the completion of the landing flare, the heel of the skids dug into the ground and the main rotor blades struck the tail boom. An examination of the engine determined that the fuel regulator diaphram stem had suffered a fatigue failure. This allowed the diaphram to shut off fuel flow to the engine. The pilot elected to carry out a zero speed touch down because he believed that the terrain was unsuitable for a run-on landing, but he misjudged the landing flare.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 26 October 1985 Investigation status: Completed 
Time: 1600  
Location:62 km SE of Karratha Investigation type: Occurrence Investigation 
State: Western Australia  
Release date: 09 April 1986  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Hughes Helicopters 
Aircraft model: 269 
Aircraft registration: VH-MSL 
Type of operation: Aerial Work 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Mardie Station WA
Departure time:1600
Destination:Mundabullangana Station WA
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