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In the pre-take-off briefing the instructor advised the student that during the flight they would conduct an inspection of the power lines crossing the Herbert River. The student subsequently flew the aircraft, in accordance with the instructor's directions, at about 100 feet above the river. The instructor was aware of four power line crossings. After passing the first, and when en-route to the second, the pilots heard a scraping sound and the aircraft slowed. Despite the attempts of the pilots the aircraft nosed down and subsequently struck the surface of the water at a shallow angle. Investigation revealed that the aircraft had collided with a power line, the presence of which was unknown to the instructor and had not been seen by either pilot. One of the supporting poles was obscured by trees, while the other pole was located approximately 350 metres across the river in a sugar cane plantations. All the wires were estimated to be 100 feet above water level.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 15 March 1988 Investigation status: Completed 
Time: 1510  
Location:20 km NW of Ingham Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Wirestrike 
Release date: 15 August 1988 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 150 
Aircraft registration: VH-WWN 
Serial number: 15077520 
Type of operation: Flying Training 
Damage to aircraft: Substantial 
Departure point:Ingham QLD
Departure time:1410
Destination:Ingham QLD
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