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Last updated: 5 December 2021
Datum:Montag 27 Dezember 1999
Flugzeugtyp:Silhouette image of generic B733 model; specific model in this crash may look slightly different
Boeing 737-377
Fluggesellschaft:Ansett Australia Airlines
Kennzeichen: VH-CZM
Werknummer: 24302/1618
Baujahr: 1988-09-23 (11 years 3 months)
Triebwerk: 2 CFMI CFM56-3B1
Besatzung:Todesopfer: 0 / Insassen:
Fluggäste:Todesopfer: 0 / Insassen:
Gesamt:Todesopfer: 0 / Insassen:
Sachschaden: schwer beschädigt
Konsequenzen: Repaired
Unfallort:Melbourne-Tullamarine Airport, VIC (MEL) (   Australien)
Flugphase: Rückstellung/Schleppen (PBT)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Melbourne-Tullamarine Airport, VIC (MEL/YMML), Australien
Flug nach:Sydney-Kingsford Smith International Airport, NSW (SYD/YSSY), Australien
During the pre-departure preparations, one end of a towbar was connected to the nose landing gear of a Boeing 737 aircraft and a pushback tractor was positioned approximately one metre from the towbar's opposite end. A ground engineer subsequently started the tractor with the intention of hooking up to the towbar. When the engineer released the handbrake, the tractor lurched forward and struck the towbar. The force of the impact fractured the aircraft nose landing gear drag brace. The nose landing gear assembly then pivoted back under the aircraft, becoming jammed between the towbar and the aircraft fuselage.

Probable Cause:

The investigation was unable to determine the reason for the sudden movement of the pushback tractor.



ATSB issued 2 Safety Recommendations

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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 Melbourne-Tullamarine Airport, VIC to Sydney-Kingsford Smith International Airport, NSW as the crow flies is 703 km (440 miles).

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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