On 25 June 2004, the Australian Transport Safety Bureau released
its final investigation report into an accident which occurred on
27 November 2001 at Toowoomba aerodrome, Qld, involving a Beech
Aircraft Corporation King Air C90 aircraft, registered VH-LQH,
which experienced an engine failure shortly after takeoff. The
aircraft was destroyed and all four occupants sustained fatal
injuries. The report (200105618) is available on the ATSB website
(www.atsb.gov.au).
In September 2005, a coronial inquiry into the accident was
commenced. During that inquiry, new information was brought to the
attention of the ATSB. As a result of this new information, the
ATSB formally reopened the investigation on 11 November 2005in
accordance with Paragraph 5.13 of Annex 13 to the Chicago
Convention through Section 17 of the Transport Safety
Investigation Act 2003, to assess the matters raised and their
significance to the original ATSB investigation findings.
In light of a further review of the evidence, the ATSB has
reconsidered its original finding that the initiating event of the
engine failure of VH-LQH was a blade release in the compressor
turbine and proposes that an alternative possibility could have
been that the initiating event occurred in the power turbine.
Notwithstanding this possibility, in either scenario, the remainder
of the findings and safety recommendations contained in the
original ATSB report are still relevant.
Attachment 1: Technical Analysis Report
(1480Kb)
[PDF 1480 MB
]
