Aviation safety investigations & reports

Engine malfunction: rejected takeoff Mount Isa, Qld

Investigation number:
Status: Completed
Investigation completed


Download Final Report
[Download  PDF: 307KB]

A Saab 340B passenger aircraft, registered VH-UYA, experienced a left engine malfunction during the take-off roll at Mount Isa airport. In response to the abnormal engine condition, the flight crew rejected the takeoff and shut down the left engine. When the engine was subsequently disassembled by the engine manufacturer, it was revealed that a single stage-four power turbine blade had fractured at the blade root. The liberated airfoil section caused secondary damage to the power turbine and exhaust sections. Metallurgical analysis of the fractured blade revealed that a pre-existing crack had been present at the blade root for a significant period of engine operation prior to the incident malfunction.

Download Final Report
[Download  PDF: 307KB]
General details
Date: 16 December 2006   Investigation status: Completed  
Time: 1050 EST   Investigation level: Systemic - click for an explanation of investigation levels  
Location   (show map): Mount Isa    
State: Queensland   Occurrence type: Engine failure or malfunction  
Release date: 04 March 2009   Occurrence category: Serious Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer S.A.A.B. Aircraft Co  
Aircraft model 340  
Aircraft registration VH-UYA  
Serial number 340B-357  
Type of operation Air Transport Low Capacity  
Departure point Mount Isa, Qld  
Destination Townsville, Qld  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command ATPL
Last update 03 April 2020