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Last updated: 30 March 2020
Status:Definitief
Datum:vrijdag 25 februari 1994
Tijd:19:46
Type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 813 Viscount
Luchtvaartmaatschappij:British World Airways
Registratie: G-OHOT
Constructienummer: 349
Bouwjaar: 1958
Aantal vlieguren:50995
Motoren: 4 Rolls-Royce Dart 530
Bemanning:slachtoffers: 1 / inzittenden: 2
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 1 / inzittenden: 2
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:7,5 km (4.7 mijl) SW of Uttoxeter (   Verenigd Koninkrijk)
Fase: Kruisvlucht (ENR)
Soort vlucht:Vracht
Vliegveld van vertrek:Edinburgh-Turnhouse Airport (EDI/EGPH), Verenigd Koninkrijk
Vliegveld van aankomst:Coventry-Baginton Airport (CVT/EGBE), Verenigd Koninkrijk
Vluchtnummer:4272
Beschrijving:
The aircraft was en-route to Coventry in severe icing conditions when the no. 2 engine failed and the prop auto feathered. The no. 3 engine also ran down. The crew, at that moment descending from FL150, were cleared for an immediate descent to FL70 and then to FL50. The crew elected to divert to Birmingham since the engines wouldn't restart. They managed to restart the no. 2 engine a little later, but then the no. 4 engine failed. Just 5 minutes short of Birmingham load shedding occurred and radio and intercom were lost. The Viscount struck trees on down sloping terrain and broke up.

Probable Cause:

CAUSAL FACTORS: "i) Multiple engine failures occurred as a result of flight in extreme icing conditions. ;
ii) Incomplete performance of the emergency drills by the crew, as a result of not referring to the Emergency Checklist, prejudiced the chances of successful engine re-starts. ;
iii) Crew actions for securing and re-starting the failed engines, which were not in accordance with the operator's procedures, limited the power available. The drag from two unfeathered propellers of the failed engines and the weight of the heavily iced airframe resulted in a loss of height and control before the chosen diversion airfield could be reached. ;
iv) Poor Crew Resource Management reduced the potential for emergency planning, decision making and workload sharing. Consequently, the crew had no contingency plan for the avoidance of the forecast severe icing conditions, and also was unaware of the relative position of a closer diversion airfield which could have been chosen by making more effective use of air traffic services."

Accident investigation:
cover
Investigating agency: AAIB
Status: Investigation completed
Duration: 1 years
Accident number: AAIB AAR 3/95
Download report: Final report

Bronnen:
» FSF Accident Prevention Vol. 52, No. 6 (June 1995)
» ICAO Adrep Summary 2/94 (#23)


Veiligheidsmaatregelen

AAIB issued 2 Safety Recommendations

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Foto's

photo of Vickers-813-Viscount-G-OHOT
accident date: 25-02-1994
type: Vickers 813 Viscount
registration: G-OHOT
 

Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Edinburgh-Turnhouse Airport en Coventry-Baginton Airport bedraagt 414 km (259 miles).
Accident location: Exact; as reported in the official accident report.

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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