Aviation safety investigations & reports

Bell 47G, VH-UAF, Oberon NSW, 6 November 1990

Investigation number:
Status: Completed
Investigation completed


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The helicopter was flying at about 25 knots and a height of about 75 feet, 10 feet to the left of power lines. The passenger was surveying the wires. As the helicopter approached a tree line, the pilot increased collective. However, rotor RPM decayed and the helicopter descended rapidly, hitting the ground and rolling over.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 06 November 1990   Investigation status: Completed  
Time: 930    
Location: Oberon    
State: New South Wales   Occurrence type: Loss of control  
Release date: 13 July 1992   Occurrence category: Accident  
Report status: Final   Highest injury level: Minor  

Aircraft details

Aircraft details
Aircraft manufacturer Bell Helicopter Co  
Aircraft model 47  
Aircraft registration VH-UAF  
Serial number 7546  
Type of operation Aerial Work  
Sector Helicopter  
Damage to aircraft Substantial  
Departure point Oberon NSW  
Departure time 0915  
Destination Oberon NSW