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Last updated: 17 October 2021
Status:Schlussbericht
Datum:Dienstag 18 Januar 2005
Zeit:15:12
Flugzeugtyp:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft B200 Super King Air
Fluggesellschaft:Network Aviation Australia
Kennzeichen: VH-SGT
Werknummer: BB-73
Baujahr: 1975
Triebwerk: 2 Pratt & Whitney Canada PT6A-41
Besatzung:Todesopfer: 0 / Insassen: 1
Fluggäste:Todesopfer: 0 / Insassen: 7
Gesamt:Todesopfer: 0 / Insassen: 8
Sachschaden: schwer beschädigt
Konsequenzen: Repaired
Unfallort:Perth Airport, WA (PER) (   Australien)
Flugphase: Landung (LDG)
Betriebsart:Inländischer außerplanmäßiger Passagierflug
Flug von:Perth Airport, WA (PER/YPPH), Australien
Flug nach:Lake Johnston Airport, WA (YLJN), Australien
Unfallbericht:
A Beech B200 Super King Air aircraft, registered VH-SGT, sustained damage when its main landing gear collapsed on touch down on runway 24 at Perth Airport, Australia. The aircraft had earlier departed the aerodrome on a charter flight with one pilot and seven passengers on board.
The pilot had elected to return to the airport after detecting a problem during the retraction of the aircraft's landing gear. He attempted to manually extend the landing gear, but was unable to confirm that the landing gear had locked in position for the subsequent precautionary landing. The main landing gear collapsed as the aircraft touched down.
Examination of the aircraft landing gear by the aircraft operator revealed an incorrectly installed thrust bearing in the hydraulic actuator for the left main landing gear. The result was that the axial loads normally carried by the thrust bearing were transferred to the actuator's pinion gears which fractured under abnormal operational loads. That damage seized the actuator and prevented the manual extension of the aircraft's landing gear by the pilot.



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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Perth Airport, WA to Lake Johnston Airport, WA as the crow flies is 433 km (270 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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