Aviation safety investigations & reports

Engine failure – Jabiru, NT, 11 February 2008, VH-VAZ, Beech Aircraft

Investigation number:
AO-2008-008
Status: Completed
Investigation completed

Summary

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On 11 February 2008, at about 0720 Central Standard Time, following takeoff from runway 27 at Jabiru Airport, NT, a Beech Aircraft Corporation 1900D, registered VH-VAZ, sustained an auto-feather of the left propeller and subsequent left engine failure.

The aircraft was being operated on a charter flight to Darwin with two pilots and a passenger on board. The pilots reported that, following the engine failure, they completed a single-engine circuit and landing at Jabiru. Subsequent examination of the left engine revealed catastrophic internal damage to the power section of the engine. The initiator of the damage was the release of a power turbine second-stage blade. Metallurgical examination determined that the failure of the second-stage turbine blade had occurred as a consequence of the initiation and growth of a high-cycle fatigue cracking mechanism from the downstream trailing corner of the blade fir-tree root post. At the time of blade fracture, approximately 25% of the root cross-section had been compromised by fatigue cracking.

The investigation found that during the most recent overhaul of the engine, the overhaul facility did not comply with the engine manufacturer's service bulletin regarding second-stage turbine blade replacement. Consequently, outdated blades were installed.

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Interim Factual

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Interim Factual report released 22 August 2008

On 11 February 2008 at about 0720 Central Standard Time, following takeoff from runway 27 at Jabiru Airport, NT, a Beech Aircraft Corporation 1900D, registered VH-VAZ, sustained an autofeather of the left propeller and subsequent left engine failure.

The aircraft was being operated on a charter flight to Darwin with two pilots and a passenger on board. The pilots reported that, following the engine failure, they completed a single-engine circuit and landing at Jabiru. Subsequent examination of the left engine revealed catastrophic internal damage to the power section of the engine.

Download interim factual report
[Download  PDF: 171KB]
 
 
 
General details
Date: 11 February 2008   Investigation status: Completed  
Time: 0720 CST   Investigation level: Complex - click for an explanation of investigation levels  
Location   (show map): Jabiru Airport    
State: Northern Territory   Occurrence type: Engine failure or malfunction  
Release date: 15 July 2009   Occurrence class: Technical  
Report status: Final   Occurrence category: Incident  
  Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Beech Aircraft Corp  
Aircraft model 1900  
Aircraft registration VH-VAZ  
Serial number UE-115  
Type of operation Charter  
Damage to aircraft Nil  
Departure point Jabiru, NT  
Departure time Unknown  
Destination Darwin, NT  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command ATPL 809.8 3206.5
Last update 14 November 2018