Aviation safety investigations & reports

Cessna 177 RG, VH-IRO, 70 km NW of Kingston SE SA, 8 October 1983

Investigation number:
Status: Completed
Investigation completed


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During cruise at about 1000 feet agl the engine began to run roughly and the pilot observed falling oil pressure indications. A severe engine vibration then developed and the pilot, after selecting a suitable forced landing area, shut down the engine. He delayed lowering the landing gear until he was satisfied that the selected area had a firm surface. The gear was selected down on very late final, but only the nose gear had time to become partially extended before touchdown. Lack of sufficient tension of a nut securing a conrod bolt of Number 1 cylinder allowed the conrod bearing cap to loosen causing loss of oil pressure and subsequent engine failure.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 08 October 1983   Investigation status: Completed  
Time: 0941    
Location: 70 km NW of Kingston SE    
State: South Australia    
Release date: 03 May 1985   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 177  
Aircraft registration VH-IRO  
Type of operation Private  
Damage to aircraft Substantial  
Departure point Parafield SA  
Departure time 815  
Destination Robe SA  
Last update 01 April 2011