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Accident description
Last updated: 18 October 2017
Status:
Date:Sunday 4 September 1977
Type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 764D Viscount
Operator:SAN Ecuador (Servicios Aéreos Nacionales)
Registration: HC-BCL
C/n / msn: 185
First flight: 1956-11-30 (20 years 9 months)
Engines: 4 Rolls-Royce Dart 510
Crew:Fatalities: 4 / Occupants: 4
Passengers:Fatalities: 29 / Occupants: 29
Total:Fatalities: 33 / Occupants: 33
Airplane damage: Destroyed
Airplane fate: Written off (damaged beyond repair)
Location:40 km (25 mls) N of Cuenca (   Ecuador)
Phase: Approach (APR)
Nature:Domestic Scheduled Passenger
Departure airport:Guayaquil-Simon Bolivar Airport (GYE/SEGU), Ecuador
Destination airport:Cuenca Airport (CUE/SECU), Ecuador
Narrative:
A Vickers Viscount of SAN Ecuador was destroyed when it impacted a mountain in the Cajas Mountain Range. All 33 on board were killed.
The aircraft departed Guayaquil, Ecuador, at 13:40 GMT a VFR flight plan, bound for Cuenca. Reportedly instrument weather conditions existed en route.

Classification:
VFR flight in IMC
Controlled Flight Into Terrain (CFIT) - Mountain

Sources:
» El Tiempo - 5 Sep 1977


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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 Guayaquil-Simon Bolivar Airport to Cuenca Airport as the crow flies is 128 km (80 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

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

  • 445 built
  • 110th loss
  • 56th fatal accident
  • 16th worst accident (at the time)
  • 22nd worst accident (currently)
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 Ecuador
  • 5th worst accident (at the time)
  • 10th worst accident (currently)
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