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Following a period of circuit practice, the instructor was demonstrating some enroute emergency procedures. An autorotation was entered from 2000 feet, with the pilot aiming for a paddock on the side of a river. He advised that descent was continued to about 250 feet above the ground. Shortly after power was re-applied the helicopter collided with a set of power lines and dived to the ground. The pilot had noted two other sets of wires in the area, but had not sighted a set of three cables between the others until immediately before the collision. The helicopter was being operated outside the designated training area. The grey oxidised powerlines, which were estimated to be between 80 and 100 feet above ground level, were very difficult to see against the overcast sky conditions. The span between supporting poles was greater than those between the other sets of cables.

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General details
Date: 19 November 1986 Investigation status: Completed 
Time: 1130 approx  
Location:3 km NNE Greta Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Wirestrike 
Release date: 18 May 1987 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: Serious 
Aircraft details
Aircraft manufacturer: Robinson Helicopter Co 
Aircraft model: R22 
Aircraft registration: VH-UXI 
Type of operation: Flying Training 
Sector: Helicopter 
Damage to aircraft: Destroyed 
Departure point:Maitland NSW
Departure time:1130 approx
Destination:Maitland NSW
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