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Last updated: 20 October 2020
Status:
Datum:donderdag 5 maart 1959
Tijd:19:35 UTC
Type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 763D Viscount
Luchtvaartmaatschappij:TACA International Airlines
Registratie: YS-09C
Constructienummer: 82
Bouwjaar: 1958-10-07 (5 months)
Aantal vlieguren:819
Aantal vluchten:600
Motoren: 4 Rolls-Royce Dart 510
Bemanning:slachtoffers: 2 / inzittenden: 4
Passagiers:slachtoffers: 13 / inzittenden: 15
Totaal:slachtoffers: 15 / inzittenden: 19
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:2,4 km (1.5 mijl) van Managua Airport (MGA) (   Nicaragua)
Fase: InitiŽle klim (ICL)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Managua Airport (MGA/MNMG), Nicaragua
Vliegveld van aankomst:Tegucigalpa-Toncontin Airport (TGU/MHTG), Honduras
Vluchtnummer: 779
Beschrijving:
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."

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


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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 Managua Airport en Tegucigalpa-Toncontin Airport bedraagt 240 km (150 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkís 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

  • 445 built
  • 21e ongeval
  • 12e dodelijk ongeval
  • 6e zwaarste ongeval (toen het plaatsvond)
  • 42e zwaarste ongeval (op dit moment)
» safety profile

 Nicaragua
  • 4e zwaarste ongeval (toen het plaatsvond)
  • 7e zwaarste ongeval (op dit moment)
» safety profile