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Accident
Last updated: 17 October 2017
Statuts:Enquête Officielle
Date:dimanche 29 septembre 1985
Heure:12:30
Type/Sous-type:Silhouette image of generic C208 model; specific model in this crash may look slightly different
Cessna 208 Caravan I
Compagnie:Air Carriers Express Services Inc
Immatriculation: N551CC
Numéro de série: 208-00017
Année de Fabrication: 1985
Heures de vol:350
Moteurs: 1 Pratt & Whitney Canada PT6A-114
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 16 / à bord: 16
Total:victimes: 17 / à bord: 17
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:près de Jenkinsburg, GA (   Etats-Unis d'Amérique)
Phase de vol: En montée initiale (ICL)
Nature:Parachutage
Aéroport de départ:Jenkinsburg, GA, Etats-Unis d'Amérique
Aéroport de destination:Jenkinsburg, GA, Etats-Unis d'Amérique
Détails:
The aircraft departed Jenkinsburg on a skydiving flight. The engine lost power at approx 300 feet agl. and the Caravan then banked steeply left, spiralled in a steep nose down attitude and crashed. It appeared that the fuel in the tanks was contaminated with water and foreign material with the appearance of brown algae. A milky fluid (approx 65% jet fuel and 34% water) was found in the engine fuel control, as well as iron contaminants. Dark stringy material was found in the fuel filters. The aircraft had been refuelled from 55 gallon drums which contained contaminated fuel. The drums were stored upright and rain water could leak through the filler caps.
N551CC had a history of fuel contamination which on occasions caused the fuel bypass indicator to display. Reportedly, the stall warning circuit breaker had been disengaged on other occasions, so as not to startle the jumpers; however, due to damage, its preimpact position could not be verified. The plane was estimated to be 370 lb (168 kg) over its maximum weight limit and 1 inch forward of the CG limit.

Probable Cause:

PROBABLE CAUSE:
"Maintenance, service of aircraft/equipment .. improper .. company/operator management
Operation with known deficiencies in equipment .. performed .. company/operator management
Airspeed .. not maintained .. pilot in command
Stall .. inadvertent .. pilot in command
Fluid, fuel .. contamination
Spiral .. inadvertent .. pilot in command
Fluid, fuel .. water
CONTRIBUTING FACTORS
Electrical system, circuit breaker .. not engaged
Fuel system .. contamination
Warning system(other) .. disabled
Improper use of procedure .. pilot in command
Inadequate surveillance of operation .. FAA"

Sources:
» NTSB


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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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