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Last updated: 3 December 2021
Statuts:
Date:dimanche 1 avril 1990
Type/Sous-type:Armstrong Whitworth AW-650 Argosy 222
Compagnie:SAFE Air
Immatriculation: ZK-SAF
Numéro de série: 6801
Année de Fabrication: 1965-02-10 (25 years 2 months)
Heures de vol:47035
Cycles:36329
Moteurs: 4 Rolls-Royce Dart 532-1
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 2
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Blenheim-Woodbourne Airport (BHE) (   Nouvelle-Zélande)
Phase de vol: A l'atterrissage (LDG)
Nature:Cargo
Aéroport de départ:Christchurch International Airport (CHC/NZCH), Nouvelle-Zélande
Aéroport de destination:Wellington International Airport (WLG/NZWN), Nouvelle-Zélande
Détails:
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installed incorrectly and would allow foreign material to find its way into the spring housing when the undercarriage was retracted.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.

Sources:
» Kiwi Aircraft Images: Armstrong-Whitworth AW650 Argosy


Photos

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
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Christchurch International Airport et Wellington International Airport est de 304 km (190 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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