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The pilot-under-check was conducting his first circuit in the aircraft as part of a conversion onto the type. On final approach he realised that he had not selected carburettor heat, and moved to apply this control. However, he inadvertently pulled out the mixture control and all engine power was lost. Both pilots tried to return the mixture control to the full rich position, but found that the control could not be moved. The approach was being conducted in strong wind conditions and the instructor assessed that the airfield was beyond safe gliding range. He took control and turned the aircraft towards a cleared area. However, the aircraft overshot this area and collided with trees before coming to rest in a ditch. Examination of the mixture control revealed that the cable had broken due to metal fatigue. However, the cause of this fatigue was not positively determined.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 19 January 1988 Investigation status: Completed 
Time: 1748 WST  
Location:Jandakot Investigation type: Occurrence Investigation 
State: Western Australia  
Release date: 15 March 1988  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: American Aircraft Corp 
Aircraft model: AA-5 
Aircraft registration: VH-IFL 
Serial number: AA5B-0549 
Type of operation: Flying Training 
Damage to aircraft: Substantial 
Departure point:Jandakot WA
Departure time:1700 WST
Destination:Jandakot WA
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