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The pilot left his home base and flew to the strip from which he intended to conduct top dressing operations. Shortly after a normal take-off with the first load of superphosphate, the engine power suddenly deteriorated rapidly. The pilot dumped the load and landed in an adjoining paddock, but the aircraft collided with a fence and subsequently ground looped. No fault was subsequently found with the engine, which was still operating at idle power when the aircraft came to rest. After arrival at the agricultural strip, the pilot had left the engine idling for several minutes with the carburettor heat selected to the cold position. Atmospheric conditions were suitable for the formation of carburettor icing, and it was most probable that this had occurred. The pilot had been in the habit of using reduced power for take-off, which may have aggravated any tendency for carburettor ice to form.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 01 July 1986 Investigation status: Completed 
Time: N/A  
Location:Panuara (8 km NW Mandurama) Investigation type: Occurrence Investigation 
State: New South Wales  
Release date: 03 September 1986  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-25 
Aircraft registration: VH-PPA 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Panuara NSW
Departure time:N/A
Destination:Panuara NSW
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