Aviation safety investigations & reports

Abnormal engine indications involving a British Aerospace PLC 3107, VH-TQK, 56km SW Williamtown, NSW on 4 February 1999

Investigation number:
Status: Completed
Investigation completed


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While conducting a regular public transport operation between Williamtown and Sydney, the pilot of a British Aerospace J31 secured the right engine of the aircraft after it auto shut down. He informed the air traffic controller who then issued a clearance to proceed direct to Sydney. The investigation revealed that a support bearing in a gearshaft had failed within the engine gearbox, disconnecting the gear shaft. This deprived the oil pump, fuel control unit, and fuel pump of drive, thereby shutting down the engine. The bearing failure is the subject of a major defect report to the Civil Aviation Safety Authority.
Download Final Report
[Download  PDF: 13KB]
General details
Date: 04 February 1999   Investigation status: Completed  
Time: 18:48 ESuT    
State: New South Wales   Occurrence type: Abnormal engine indications  
Release date: 20 July 1999   Occurrence category: Incident  
Report status: Final    

Aircraft details

Aircraft details
Aircraft manufacturer British Aerospace PLC  
Aircraft model 3107  
Aircraft registration VH-TQK  
Sector Turboprop  
Damage to aircraft Nil  
Departure point Williamtown NSW  
Destination Sydney NSW