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The pilot was approaching to land at the end of a local soaring flight. He commenced final approach at a satisfactory height and speed. The air brakes were selected half extended in order to control the approach. A short time later the aircraft began to slow down and sink more rapidly than the pilot desired so he lowered the nose and attempted to retract the air brakes. He was unable to retract the brakes and the aircraft struck the boundary fence short of the runway. On later consideration of his actions the pilot found that he had been trying to extend the airbrakes rather than retract them. He considered that this was due his anxiety at the high rate of descent that had developed. The initial high rate of descent was probably a result of unexpected sink encountered on approach.

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General details
Date: 07 May 1989 Investigation status: Completed 
Time: 1545  
Location:Gympie Investigation type: Occurrence Investigation 
State: Queensland  
Release date: 10 August 1989 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Alexander Schleicher Segelflugzeugbau 
Aircraft model: ASK-13 
Aircraft registration: VH-GXT 
Serial number: 13124 
Type of operation: Gliding 
Damage to aircraft: Substantial 
Departure point:Gympie QLD
Departure time:1533
Destination:Gympie QLD
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Last update 13 May 2014