Aviation safety investigations & reports

Hiller UH-12E, VH-HMT, Cooroorah Station (32km North of Blackwater) QLD, 29 January 1989

Investigation number:
198903746
Status: Completed
Investigation completed

Summary

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At the conclusion of a mustering operation, the pilot flew to a neighboring property. He made an approach to a line of the houses at the property but no-one came out to meet the helicopter. He then decided to hover-taxy to a shed some 90 metres away and land. Whilst taxying the helicopter at about 10 knots, the pilot suddenly noticed a three phase power line immediately in front of him, angled at about 30` to his track. He attempted to avoid a collision by initiating a back-up but the mainrotor mast and tailrotor became entangled in the three wires. The bubble was smashed by a flailing wire as the helicopter descended out of control. The ensuing landing was heavy, resulting in a collapsed left skid gear. The helicopter remained substantially upright. The pilot later said that the power poles supporting the span were obscured by trees.

Download Final Report
[Download  PDF: 22KB]
 
 
 
General details
Date: 29 January 1989   Investigation status: Completed  
Time: 1120    
Location: Cooroorah Station (32km North of Blackwater)    
State: Queensland   Occurrence type: Wirestrike  
Release date: 16 March 1989   Occurrence class: Operational  
Report status: Final   Occurrence category: Accident  
  Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Hiller Aviation  
Aircraft model UH-12  
Aircraft registration VH-HMT  
Serial number HA 3066  
Type of operation Aerial Work  
Damage to aircraft Substantial  
Departure point Barrain Station QLD  
Departure time 1110  
Destination Cooroorah Station QLD