Accident
Last updated: 20 September 2014
Status:Definitief
Datum:maandag 18 januari 1960
Tijd:22:19
Type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 745D Viscount
Luchtvaartmaatschappij:Capital Airlines
Registratie: N7462
Constructienummer: 217
Bouwjaar: 1957
Aantal vlieguren:9247
Motoren: 4 Rolls-Royce Dart 510
Bemanning:slachtoffers: 4 / inzittenden: 4
Passagiers:slachtoffers: 46 / inzittenden: 46
Totaal:slachtoffers: 50 / inzittenden: 50
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:11 km (6.9 mijl) ENE of Charles City, VA (   Verenigde Staten) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Washington-National Airport, DC (DCA/KDCA), Verenigde Staten
Vliegveld van aankomst:Norfolk Municipal Airport, VA (ORF/KORF), Verenigde Staten
Vluchtnummer: 20
Beschrijving:
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."

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


Veiligheidsmaatregelen
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.

Foto's

photo of Vickers 745D Viscount N7462
photo of Vickers 745D Viscount N7462
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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 Washington-National Airport, DC en Norfolk Municipal Airport, VA bedraagt 228 km (143 miles).

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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Vickers Viscount

  • 30e ongeval
  • 445 built
  • zwaarste ongeval (toen het plaatsvond)
  • 9e zwaarste ongeval (op dit moment)
safety profile

 Verenigde Staten
  • 13e zwaarste ongeval (toen het plaatsvond)
  • 57e zwaarste ongeval (op dit moment)
»safety profile