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The aircraft was in normal cruise at 1500 feet above sea level when the pilot noted a mild shuddering, and almost immediately the oil pressure reading dropped to zero. Shortly afterwards, the engine began vibrating severely, and the pilot was committed to a forced landing. In the latter stages of the approach the pilot was forced to pull-up to clear powerlines, following which the aircraft descended and struck a tree and a steel mesh fence at the edge of an industrial area. Investigation revealed that the flexible oil line between the engine and oil cooler had failed due to deterioration, resulting in oil starvation and seizure of the engine. Examination of Bureau records revealed three other recent occurrences in New South Wales where the subject hoses have failed in flight. The hoses are currently required to be inspected and tested every six years. However, the manufacturer recommends that the hoses should be replaced every five years or at engine overhaul, whichever comes first. The particular hose which failed had been in service for more than six years.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 25 October 1988 Investigation status: Completed 
Time: 1020 Investigation type: Occurrence Investigation 
Location:2 km NW of Parramatta  
State: New South Wales  
Release date: 29 June 1989 Occurrence category: Accident 
Report status: Final Highest injury level: Minor 
 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172 
Aircraft registration: VH-UGR 
Serial number: 17263949 
Type of operation: Private 
Damage to aircraft: Destroyed 
Departure point:Bankstown NSW
Departure time:1005
Destination:Forster NSW
 
 
 
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