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The pilot stated that the last refuel used super motor fuel, taken from the station bulk storage and decanted into an empty 200 litre aviation fuel drum, before being pumped into the aircraft. The refuelling of the aircraft had taken place two days before the accident. Following the refuelling, the pilot had taken a fuel sample but believed it to be free of water. No additional fuel samples had been taken prior to the accident. An inspection of the aircraft fuel system revealed a substantial quantity of water present in the carburettor bowl, fuel strainer bowl and both wing drain points. There is little doubt that this quantity of water was sufficient to cause the engine to fail.

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General details
Date: 23 August 1984 Investigation status: Completed 
Time: 1555  
Location:2km South-west of Dooley Downs Investigation type: Occurrence Investigation 
State: Western Australia  
Release date: 15 May 1987  
Report status: Final Occurrence category: Accident 
 Highest injury level: Minor 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172 
Aircraft registration: VH-TEF 
Type of operation: Private 
Damage to aircraft: Substantial 
Departure point:Dooley Downs WA
Departure time:1555
Destination:Mount Augustus WA
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Last update 01 April 2011