Accident
Last updated: 25 July 2014
Status:Schlussbericht
Datum:Montag 18 Januar 1960
Zeit:22:19
Flugzeugtyp:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 745D Viscount
Fluggesellschaft:Capital Airlines
Kennzeichen: N7462
Werknummer: 217
Baujahr: 1957
Betriebsstunden:9247
Triebwerk: 4 Rolls-Royce Dart 510
Besatzung:Todesopfer: 4 / Insassen: 4
Fluggäste:Todesopfer: 46 / Insassen: 46
Gesamt:Todesopfer: 50 / Insassen: 50
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:11 km (6.9 Meilen) ENE of Charles City, VA (   USA) show on map
Flugphase: Während des Fluges (ENR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Washington-National Airport, DC (DCA/KDCA), USA
Flug nach:Norfolk Municipal Airport, VA (ORF/KORF), USA
Flugnummer: 20
Unfallbericht:
En route from Washington to Norfolk at an altitude of 8000 feet in icing conditions, two engines failed. While descending to a lower altitude, the remaining two engines also failed and the propellers autofeathered. The crew tried to restart the engines and put the aircraft into a dive trying to drive the propellers out of the feathered position as they were not able to unfeather them normally. Eventually they managed to restart engine no. 4. Applying full power to this engine caused the Viscount to enter a circling descent until it crashed into trees with almost no forward velocity.

PROBABLE CAUSE: "The accident was attributed to the delayed arming of the engine ice protection systems while flying in icy conditions, resulting in the loss of engine power and attendant electrical energy required to unfeather propellers and relight sufficient engines to maintain flight."

Informationsquelle:
» ICAO Circular 64-AN/58 (100-107)


Sicherheitsempfehlungen
Capital Airlines changed the emergency checklist by deleting the phrase 'descend to a warmer climate for relight' and instructed pilots that engine restart could be accomplished at any height, providing that the correct procedures were followed.

Fotos

photo of Vickers 745D Viscount N7462
photo of Vickers 745D Viscount N7462
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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 Washington-National Airport, DC to Norfolk Municipal Airport, VA as the crow flies is 228 km (143 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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Vickers Viscount

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