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Last updated: 2 December 2021
Statuts:Enquête Officielle
Date:mercredi 18 juin 2008
Heure:10:01
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 100
Compagnie:Wiggins Airways
Immatriculation: N656WA
Numéro de série: 47
Année de Fabrication: 1967
Heures de vol:38185
Moteurs: 2 Pratt & Whitney Canada PT6A-20
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 0 / à bord: 0
Total:victimes: 1 / à bord: 1
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Hyannis-Barnstable Airport, MA (HYA) (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 17 m (56 feet) amsl
Phase de vol: Au décollage (TOF)
Nature:Cargo
Aéroport de départ:Hyannis-Barnstable Airport, MA (HYA/KHYA), Etats-Unis d'Amérique
Aéroport de destination:Nantucket Memorial Airport, MA (ACK/KACK), Etats-Unis d'Amérique
Numéro de vol:6601
Détails:
Wiggins Airways has a twice daily flight to the Nantucket Memorial Airport, MA (ACK) carrying UPS and Federal Express packages. It was carrying about 200 pounds of cargo for the morning flight out of Hyannis-Barnstable Airport, MA (HYA). The airplane taxied to runway 24 for departure. According to an eye witness the pilot made a rolling takeoff. The airplane banked left immediately after takeoff. It then struck terrain in a steep bank.
Investigation results indicate that the upper flight control lock was still attached to the column by its removable pin. The pin attaching the upper control lock to the control column remained tethered to upper flight control lock by a steel cable. However, the pins from the two other flight control lock cables were missing, and the cables exhibited pin retaining end failures consistent with overstress.

Probable Cause:

PROBABLE CAUSE: "The pilot's failure to remove the flight control lock prior to takeoff. Contributing to the accident was the Federal Aviation Administration's failure to issue an airworthiness directive making the manufacturer's previously-issued flight control lock service bulletins mandatory."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 years
Accident number: NYC08FA218
Download report: Summary report

Sources:
» Pilot killed in Hyannis air crash identified (Cape Cod Times, 18-6-2008)
» NTSB


Opérations de secours

FAA issued 1 Airworthiness Directive

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Photos

photo of DHC-6-Twin-Otter-100-N656WA
accident date: 18-06-2008
type: de Havilland Canada DHC-6 Twin Otter 100
registration: N656WA
photo of DHC-6-Twin-Otter-100-N656WA
accident date: 18-06-2008
type: de Havilland Canada DHC-6 Twin Otter 100
registration: N656WA
photo of DHC-6-Twin-Otter-100-N56AN
accident date: 18-06-2008
type: de Havilland Canada DHC-6 Twin Otter 100
registration: N56AN
 

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 Hyannis-Barnstable Airport, MA et Nantucket Memorial Airport, MA est de 49 km (31 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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