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ASN Wikibase Occurrence # 14684
Last updated: 8 December 2021
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Date:11-FEB-2008
Time:07:12 CST
Type:Silhouette image of generic B190 model; specific model in this crash may look slightly different
Beechcraft 1900D
Owner/operator:Vincent Aviation
Registration: VH-VAZ
MSN: UE-115
Fatalities:Fatalities: / Occupants:
Aircraft damage: Minor
Category:Incident
Location:Jabiru -   Australia
Phase: Initial climb
Nature:Passenger
Departure airport:Jabiru, NT
Destination airport:Darwin, NT
Investigating agency: ATSB
Narrative:
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 Consequently, outdated blades were installed.

Sources:

http://www.atsb.gov.au/publications/investigation_reports/2008/aair/ao-2008-008.aspx

Accident investigation:
cover
  
Investigating agency: ATSB
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
26-Feb-2008 02:30 Andrew Whitton Added
08-Sep-2014 20:37 Aerossurance Updated [Source, Damage, Narrative]

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