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Last updated: 3 December 2021
Datum:Sonntag 1 April 1990
Flugzeugtyp:Armstrong Whitworth AW-650 Argosy 222
Fluggesellschaft:SAFE Air
Kennzeichen: ZK-SAF
Werknummer: 6801
Baujahr: 1965-02-10 (25 years 2 months)
Anzahl Zyklen der Zelle:36329
Triebwerk: 4 Rolls-Royce Dart 532-1
Besatzung:Todesopfer: 0 / Insassen: 2
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 0 / Insassen: 2
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Blenheim-Woodbourne Airport (BHE) (   Neuseeland)
Flugphase: Landung (LDG)
Flug von:Christchurch International Airport (CHC/NZCH), Neuseeland
Flug nach:Wellington International Airport (WLG/NZWN), Neuseeland
The crew of the Argosy cargo plane aborted the approach to their destination of Wellington Airport because the left hand undercarriage failed to lock down.
It was decided to divert to Blenheim-Woodbourne Airport (BHE) where the SAFE Air engineering base was located.
During landing rollout the left main undercarriage collapsed and the airplane veered off the side of runway 25.

Probable Cause:

The failure of the left main undercarriage to fully extend was caused by the seizure of the piston rod within the undercarriage jack assembly. The piston rod and the spring housing through which it passed had become scored, eventually resulting in the seizure. The piston rod had been installed, new, in the jack assembly some seven months earlier and had completed 787 landings. Further investigation found that the synthetic wiper ring had been installed incorrectly and would allow foreign material to find its way into the spring housing when the undercarriage was retracted. Additionally, hydraulic components on the undercarriage may have become contaminated during cleaning in an inadequately filtered cleaning booth, which was also used for general cleaning involving the use of abrasive pads.

» Kiwi Aircraft Images: Armstrong-Whitworth AW650 Argosy


photo of Armstrong-Whitworth-AW-650-Argosy-222-EI-AVJ
accident date: 01-04-1990
type: Armstrong Whitworth AW-650 Argosy 222
registration: EI-AVJ

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 Christchurch International Airport to Wellington International Airport as the crow flies is 304 km (190 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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