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The pilot, who is an approved AUF instructor, was conducting a solo test flight, following complaints by a student that directional control was more difficult than normal. During the takeoff run a rudder lever arm collapsed, directional control was lost, and the aircraft collided with a fence. It was likely that the directional control problems originally reported were related to the rudder lever arm being bent. The reason for the bending was not established, but the lever had evidently been weakened to the point where it failed during the attempted takeoff.

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General details
Date: 30 December 1986 Investigation status: Completed 
Time: 1400  
Location   (show map):Jerseyville Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Loss of control 
Release date: 02 June 1987 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Thruster Aircraft (Australia) Pty Ltd 
Aircraft model: Thruster Gemini 
Type of operation: Sports Aviation 
Damage to aircraft: Substantial 
Departure point:Jerseyville NSW
Destination:Jerseyville NSW
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Last update 17 March 2016