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While manoeuvring to commence a clean-up spray run parallel to a power line, the helicopter collided with a spur line. A broken section of the cable struck and severed the tail boom, control was lost and the aircraft struck the ground 150 metres beyond the spur line. The pilot was aware of the presence of the spur line and had crossed it on a number of occasions during the operation. He elected to carry out a previously unplanned clean-up run to dispense the remaining chemical and temporarily overlooked the proximity of the wire. There was some evidence to indicate that the pilot was suffering from fatigue at the time of the accident.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 01 September 1984 Investigation status: Completed 
Time: 802 Investigation type: Occurrence Investigation 
Location:9 km SW of Boorowa Occurrence type:Wirestrike 
State: New South Wales Occurrence class: Operational 
Release date: 12 December 1984 Occurrence category: Accident 
Report status: Final Highest injury level: Minor 
 
Aircraft details
Aircraft manufacturer: Hiller Aviation 
Aircraft model: UH-12 
Aircraft registration: VH-CCU 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:7 km SW of Boorowa NSW
Departure time:0802
Destination:7 km SW of Boorowa NSW
 
 
 
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Last update 13 May 2014