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Last updated: 8 December 2021
Status:Preliminary - official
Date:Saturday 12 September 1987
Time:04:35
Type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft 200 Super King Air
Operator:National Airways (UK)
Registration: G-WSJE
MSN: BB-484
First flight: 1979
Engines: 2 Pratt & Whitney Canada PT6A-41
Crew:Fatalities: 1 / Occupants: 1
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 1 / Occupants: 1
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location:Rayleigh, Essex (   United Kingdom)
Phase: Initial climb (ICL)
Nature:Cargo
Departure airport:Southend Municipal Airport (SEN/EGMC), United Kingdom
Destination airport:Bergamo-Orio Al Serio Airport (BGY/LIME), Italy
Narrative:
Crashed into a garage shortly after take off for Bergamo.
Examination of the propeller assemblies indicated that, although the right-hand propeller appeared to have been at fine pitch and rotating at high revolutions at impact, the left-hand propeller had been rotating much more slowly and appeared to have been at, or close to, its fully feathered position. The firewall shut-off fuel valve for the left-hand engine was found in its closed position, consistent with the action of shutting down this engine at some point prior to the impact. A strip examination of the left-hand engine was conducted and showed no evidence of damage to its rotating assemblies prior to the impact with the garage. The only damage identified on this engine as not being consistent with the impact was a ruptured diaphragm within the low-pressure compressor bleed valve. This rolling diaphragm is designed to hold the compressor bleed valve closed a high power settings and to provide smooth opening of the compressor bleed valve with reduction of compressor discharge pressure.

Classification:
Loss of control

Sources:
» AAIB


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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Southend Municipal Airport to Bergamo-Orio Al Serio Airport as the crow flies is 924 km (577 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s 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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