Crash-aerien 02 AUG 1984 d'un Britten-Norman BN-2A Islander N589SA - Vieques Airport (VQS)
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Statuts:Accident investigation report completed and information captured
Date:jeudi 2 aot 1984
Type/Sous-type:Silhouette image of generic BN2P model; specific model in this crash may look slightly different
Britten-Norman BN-2A Islander
Compagnie:Vieques Air Link
Immatriculation: N589SA
Numéro de série: 38
Année de Fabrication: 1968-11-21 (15 years 9 months)
Moteurs: 2 Lycoming O-540-E4C5
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 8 / à bord: 8
Total:victimes: 9 / à bord: 9
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:0,8 km (0.5 milles) de Vieques Airport (VQS) (   Porto Rico)
Phase de vol: En montée initiale (ICL)
Nature:Transport de Passagers Intern.
Aéroport de départ:Vieques Airport (VQS/TJCG), Porto Rico
Aéroport de destination:Saint Croix-Alexander Hamilton Airport (STX/TISX), Vierges américaines
Numéro de vol:901A
The Islander was overloaded by 600-700 pounds when it departed Vieques. Also, its centre of gravity was up to 5 inches behind the aft limit. After takeoff the left engine lost power. It lost altitude, banked abruptly to the left, nosed down and crashed into the ocean. It appeared that the fuel had been contaminated with water.

The pilot was not certificated to fly as pilot-in-command of a commuter air carrier flight. The two previous flights flown by the pilot and the accident flight were scheduled flights, operated with a different flight number as "on-demand" flights, for which the pilot was certified.

Probable Cause:

PROBABLE CAUSE: "The failure of the pilot to execute the emergency engine-out procedure properly shortly after takeoff following a loss of power in the left engine because of water in the airplane's fuel system and the failure of the Puerto Rico Ports Authority to remove excess water known to be in the airport's in-ground fuel tank before conducting fueling operations. The pilot's failure to execute the engine-out procedure properly was due to his inexperience in multi-engine airplanes.
Contributing to the accident were: (1) the air carrier's use of a pilot not certificated for the flight; (2) the air carrier's failure to train the pilot adequately; (3) the pilot's failure to follow proper practices to detect water in the airplane's fuel tanks; (4) the out
of weight and balance condition of the airplane; (5) the Federal Aviation Administration's (FAA) incorrect application of 14 CFR Part 135 Rules to commuter air carriers; and (6) the FAA's generally inadequate surveillance of the air carrier."

Accident investigation:

Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: NTSB/AAR-85/08
Download report: Final report


Opérations de secours

NTSB issued 7 Safety Recommendations

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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 Vieques Airport et Saint Croix-Alexander Hamilton Airport est de 87 km (55 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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