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Accident
Last updated: 11 December 2017
Statuts:Enquête Officielle
Date:mercredi 20 avril 1983
Heure:12:00 UTC
Type/Sous-type:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 310
Compagnie:Air Ecosse
Immatriculation: G-STUD
Numéro de série: 545
Année de Fabrication: 1977
Heures de vol:7000
Moteurs: 2 Pratt & Whitney Canada PT6A-27
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 10
Total:victimes: 0 / à bord: 12
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Flotta Airport (FLH) (   Royaume Uni)
Phase de vol: A l'atterrissage (LDG)
Nature:Charter National
Aéroport de départ:Aberdeen-Dyce Airport (ABZ/EGPD), Royaume Uni
Aéroport de destination:Flotta Airport (FLH), Royaume Uni
Détails:
Strong winds were reported at Flotta as the Twin Otter approached Orkney Island. The aircraft first contacted the airport at 11:56, and was informed
that the surface wind was indicating 260deg/26 knots. The pilot accordingly elected to make a straight in approach to runway 35. The pilot preferred the cross-wind to come from his left-hand side, so that he could 'see' the left mainwheel onto the runway. The aircraft touched down left mainwheel first, then on the right mainwheel and, as the nosewheel touched, the commander selected reverse thrust from the propellers. As the aircraft touched down, the audible stall warning sounded momentarily. Shortly after reverse thrust from the propellers had been selected and achieved, the aircraft’s left wing started to rise. The captain applied full left wing down aileron and full left rudder, then cancelling reverse thrust from the right-hand propeller and increasing forward power on that engine.
However, he was still unable to prevent the left wing from rising further. The right-hand wing-tip contacted the ground, the aircraft yawed to the right and
then fell back momentarily onto the main wheels before ‘cartwheeling’ through an aerodrome boundary fence and coming to rest on its left side, with both wings detached.

Probable Cause:

PROBABLE CAUSE: "The accident was caused by a loss of control, shortly after touchdown, following a strong lateral gust which was in excess of the maximum cross-wind capability of the aircraft. The lack of accurate surface wind information at the runway threshold was a contributory factor."

Accident investigation:
cover
Investigating agency: AIB
Status: Investigation completed
Duration: 288 days (10 months)
Accident number: AAR 8/1983
Download report: Final report


Opérations de secours

AAIB issued 2 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

photo of de Havilland Canada DHC-6 Twin Otter 300 G-STUD
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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 Aberdeen-Dyce Airport et Flotta Airport est de 188 km (117 miles).
Accident location: Exact; deduced from official accident report.

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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