Aviation safety investigations & reports

Hiller UH12-E, VH-PYH, Clintonvale (18 km N of Warwick) QLD, 6 April 1989

Investigation number:
Status: Completed
Investigation completed


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The pilot was spraying a crop of potatoes. The rows in the paddock ran north-south and there was a powerline running from just outside the paddock at the south-western corner to about one swath width inside the paddock at the north-western corner. Spraying of the bulk of the paddock had been completed, with runs aligned with the rows. The runs were shortened on the western edge to avoid flying under the powerline. There was an easterly drift in the breeze, which the pilot assessed as 2 to 3 knots. He started a cleanup run along the western edge tracking from north to south, intending to use the drift to carry the spray under the wires into the corner of the paddock. The pilot selected an aiming point at the far end of the paddock so that the helicopter would fly parallel to the powerline. During the run the helicopter became entangled in the wires and crashed before catching fire. The pilot had made no allowance for drift in selecting the aiming point. This accident was not the subject of an on-site investigation and information on the occurrence was provided by the pilot.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 06 April 1989   Investigation status: Completed  
Time: 810    
Location: Clintonvale (18 km N of Warwick)    
State: Queensland   Occurrence type: Wirestrike  
Release date: 28 June 1989   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Hiller Aviation  
Aircraft model UH-12  
Aircraft registration VH-PYH  
Serial number 5187  
Type of operation Aerial Work  
Damage to aircraft Destroyed  
Departure point Clintonvale QLD  
Departure time 0800  
Destination Clintonvale QLD