Aviation safety investigations & reports

Thruster TST-E, 25-0290, "Wedgewood" (30 km NNW of Yass) NSW, 8 January 1989

Investigation number:
Status: Completed
Investigation completed


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For several days the pilot had been giving flying instruction to the aircraft owner operating from an airstrip located in a valley on the owner's property. The strip was aligned in an east - west direction with a downhill slope to the west. Wind conditions had been such that take-offs were being made towards the west with right hand circuits to the north so as to operate over the lowest surrounding terrain. The pilot was aware of a power line running from east to west parallel to the airstrip situated on a ridge about 700 metres to the north which the aircraft could remain well clear of while flying parallel to it on the downwind leg of the circuit. On the day of the accident the pilot had arranged to take another person for a familiarisation flight. The wind had changed to an easterly at about 10 knots so the take-off was conducted uphill. This required a longer climb out before the pilot could commence a left hand circuit to again operate north of the airstrip. He turned onto the downwind leg when about 120 -150 feet above ground level at approximately the same distance from the airstrip extended centre line as before. The circuit area was now displaced to the east where unbeknown to the pilot the power line changed direction by about 20 degrees to the south. After turning onto the downwind leg the pilot noticed the power line converging towards him from his right. Although evasive action was taken it was too late to prevent the right hand wing from contacting the power line resulting in loss of control and the aircraft dived into the ground. The pilot reported that the aircraft had been operating normally before colliding with the power line. This accident was not the subject of an on-scene investigation.

Download Final Report
[Download  PDF: 23KB]
General details
Date: 08 January 1989   Investigation status: Completed  
Time: 1000    
Location   (show map): "Wedgewood" (30 km NNW of Yass)    
State: New South Wales   Occurrence type: Wirestrike  
Release date: 28 February 1990   Occurrence category: Accident  
Report status: Final   Highest injury level: Serious  

Aircraft details

Aircraft details
Aircraft manufacturer Thruster Aircraft (Australia) Pty Ltd  
Aircraft model T500  
Aircraft registration 25-0290  
Serial number 088-344  
Type of operation Sports Aviation  
Damage to aircraft Substantial  
Departure point "Wedgewood" NSW  
Departure time 958  
Destination Wedgewood NSW