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Accident
Last updated: 22 October 2017
Statuts:Enquête Officielle
Date:samedi 16 février 1980
Heure:14:16
Type/Sous-type:Bristol 175 Britannia 253
Compagnie:Redcoat Air Cargo
Immatriculation: G-BRAC
Numéro de série: 13448
Année de Fabrication: 1959
Heures de vol:21963
Cycles:8310
Moteurs: 4 Rolls-Royce Proteus 790
Equipage:victimes: 4 / à bord: 5
Passagers:victimes: 3 / à bord: 3
Total:victimes: 7 / à bord: 8
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Billerica, MA (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Cargo
Aéroport de départ:Boston-Logan International Airport, MA (BOS/KBOS), Etats-Unis d'Amérique
Aéroport de destination:Shannon Airport (SNN/EINN), Irlande
Numéro de vol: 103
Détails:
Flight 103 took off from Boston runway 33L at 14:08 in bad weather (800 m visibility in snow, fog and moderate to severe icing in precipitation).
The cargo aircraft reached an altitude of 1700 feet after takeoff and started to descend. The aircraft descended into a wooded area and crashed.

Probable Cause:

PROBABLE CAUSE: "Degraded aerodynamic performance beyond the flight capabilities of the aircraft resulting from an accumulation of ice and snow on the airframe before take-off and a further accumulation of ice when the aircraft was flown into moderate to severe icing conditions following take-off.
Contributing were encounters with windshear, downdraughts and turbulence during the climb. The failure of the flight crew to obtain an adequate pre-flight weather briefing and the failure of the National Weather Service to advise the crew of a SIGMET for severe icing conditions were also contributing factors."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: NTSB/AAR-81-03
Download report: Final report

Sources:
» NTSB Safety Recommendations A-81-18
» NTSB-AAR-81-3


Opérations de secours

NTSB issued 6 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

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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 Boston-Logan International Airport, MA et Shannon Airport est de 4614 km (2884 miles).
Accident location: Exact; as reported in the 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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