Aviation safety investigations & reports

Landing Gear Collapse, Perth Airport, WA, 9 April 2007, VH-SGT, Beech Aircraft Copr - Super king Air 200

Investigation number:
Status: Completed
Investigation completed


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On 9 April 2007, at 1703 Western Standard Time, the main landing gear of a Beech Super King Air 200 (registered VH-SGT) collapsed on touchdown at Perth airport. The aircraft was extensively damaged as a result of the collapse. No injuries were sustained by the pilot or passengers from the accident.

The Australian Transport Safety Bureau investigation revealed that two major system components had failed which could have prevented the landing gear from properly retracting/extending; the geared components within the right main landing gear actuator had fractured, and the left torque tube support bearing had seized from contamination and lack of lubrication. Although each component failure was apparently unrelated, the examination was not able to conclusively establish which failure had been the primary contributing factor in this landing occurrence. The Super King Air 200 aircraft landing gear system configuration was such that should either one of these component assemblies cease to function, extension or retraction of the landing gear would not have been possible.

As a result of this occurrence, the operator changed their system of maintenance to introduce an inspection interval and replacement schedule for all landing gear torque tube support bearings within their Super King Air 200 fleet.

The Civil Aviation Safety Authority released airworthiness bulletin 32-07 to all operators of Hawker Beechcraft 65, 70, Queen Air 90 and 200-series King Air aircraft that recommended changes to the maintenance schedule for landing gear components.

Safety Advisory Notice


Download Final Report
[Download  PDF: 1.51MB]
General details
Date: 09 April 2007   Investigation status: Completed  
Time: 1703 WST    
Location   (show map): Perth Airport    
State: Western Australia   Occurrence type: Landing gear/indication  
Release date: 08 February 2008   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Beech Aircraft Corp  
Aircraft model 200  
Aircraft registration VH-SGT  
Serial number BB-73  
Type of operation Charter  
Damage to aircraft Substantial  
Departure point Perth, WA  
Destination Mt Hale, WA  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command ATPL
Last update 18 April 2018