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Last updated: 20 October 2020
Statuts:
Date:jeudi 5 mars 1959
Heure:19:35 UTC
Type/Sous-type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 763D Viscount
Compagnie:TACA International Airlines
Immatriculation: YS-09C
Numéro de série: 82
Année de Fabrication: 1958-10-07 (5 months)
Heures de vol:819
Cycles:600
Moteurs: 4 Rolls-Royce Dart 510
Equipage:victimes: 2 / à bord: 4
Passagers:victimes: 13 / à bord: 15
Total:victimes: 15 / à bord: 19
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:2,4 km (1.5 milles) de Managua Airport (MGA) (   Nicaragua)
Phase de vol: En montée initiale (ICL)
Nature:Transport de Passagers Intern.
Aéroport de départ:Managua Airport (MGA/MNMG), Nicaragua
Aéroport de destination:Tegucigalpa-Toncontin Airport (TGU/MHTG), Honduras
Numéro de vol: 779
Détails:
The TACA Viscount took off from Las Mercedes Airport for a flight to San Salvador Guatemala, Mexico and New Orleans. Shortly after lift-off the no. 1 engine was observed to have stopped. The aircraft started an abrupt left turn followed by an excessive bank to the left. The plane lost height, collided with a tree and crashed inverted.

Probable Cause:

PROBABLE CAUSE: "In accordance with the documentation obtained and data collected during the inquiry, the Investigating Board reached the following conclusions: The accident was caused by the following factors: 1) Failure of No.1 engine at the end of runway 29 during takeoff and before reaching V2 speed. 2) The non-retraction of the landing gear immediately after the aircraft reached V2 speed; 3) Failure of engine no.2 a few seconds later, during a climb with insufficient speed to maintain control which resulted in a forced turn to the left that became tighter and tighter; the aircraft finally rolled into an inverted position and hit a tree with its left wing. Several possible reasons for the failure of engines no.1 and 2 and the non-retraction of the landing gear were considered, however the Board found no substantiating evidence or proof in the various tests carried out on the aircraft's parts to support any one of them. The Board was therefore, unable positively to attribute the accident to any mechanical or electrical failure or to any piloting error."

Sources:
» ICAO Accident Digest Circular 62-AN/57 (99-100)
» El Litoral 11-3-1959 (accident photo)


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Managua Airport et Tegucigalpa-Toncontin Airport est de 240 km (150 miles).
Accident location: Approximate; accuracy within a few kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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Vickers Viscount

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  • 21ème loss
  • 12ème accident fatal
  • le accident 6ème le plus grave (à ce moment là)
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 Nicaragua
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  • le accident 7ème le plus grave (en ce moment)
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