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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 Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Loss of control 
Release date: 13 July 1992 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: Minor 
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
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