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The pilot under instruction had no prior experience with DH82 aircraft. His instructor gave him a preflight briefing on the external and internal checks and the engine starting procedure but did not point out that the mixture control lever on the throttle quadrant was disconnected. With the pilot under instruction occupying the rear cockpit and the instructor standing behind the propeller the starting procedure was commenced without the aid of wheel chocks. In response to the instructor's call, the pilot under instruction set what he believed to be the throttle lever in the start position and switched on the magnetos. The throttle was in fact in the full forward (fully open) position and the pilot under instruction had mistakenly operated the mixture control lever in the belief that it was the throttle lever. The instructor swung the propeller from behind and, when the engine started, the aircraft surged forward under high power. The instructor was forced to jump clear and the aircraft commenced to swing in a wide left arc through 180 degrees until it struck a cyclone wire fence and came to rest, tail high, on the fence line.
Download Final Report
[ Download PDF: 146KB]
General details
Date: 18 October 1970 Investigation status: Completed 
Time: 1245 EST  
Location:Tyabb Investigation type: Occurrence Investigation 
State: Victoria  
Release date: 15 April 1971  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: de Havilland Aircraft Pty Ltd 
Aircraft model: DH-82 
Aircraft registration: VH-GVA 
Type of operation: Flying Training 
Damage to aircraft: Substantial 
Departure point:Tyabb
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Last update 16 May 2014