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Accident description
Last updated: 21 October 2016
Date:Friday 6 May 1949
Type:Silhouette image of generic B170 model; specific model in this crash may look slightly different
Bristol 170 Freighter 31
Operator:Bristol Aeroplane Company
Registration: G-AIFF
C/n / msn: 12766
First flight:
Crew:Fatalities: 7 / Occupants: 7
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 7 / Occupants: 7
Airplane damage: Damaged beyond repair
Location:26 km (16.3 mls) off Portland Lighthouse (   United Kingdom)
Phase: Maneuvering (MNV)
Departure airport:Filton Airport (FZO/EGTG), United Kingdom
Destination airport:?
The Bristol 170 aircraft was operated by the Bristol company to perform some tests to obtain engine and propeller data under specific climbing conditions. The aircraft departed Filton at 10:03. At 11:10 the commander of a surfaced submarine saw the aircraft crash into the sea. A large object, thought to be part of the wing was seen fluttering down separately.

PROBABLE CAUSE: "The accident was the result of a structural failure in the air, the cause of which is unknown."

Fuselage failure
Loss of control



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This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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