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Accident description
Last updated: 12 December 2017
Date:Thursday 17 January 2002
Type:Silhouette image of generic F27 model; specific model in this crash may look slightly different
Fairchild FH-227E
Operator:Petroproduccion - Unidad de Aviacion
Registration: HC-AYM
C/n / msn: 511
First flight: 1966
Total airframe hrs:29154
Engines: 2 Rolls-Royce Dart 532-7L
Crew:Fatalities: 5 / Occupants: 5
Passengers:Fatalities: 21 / Occupants: 21
Total:Fatalities: 26 / Occupants: 26
Airplane damage: Damaged beyond repair
Location:Cerro El Tigre (   Colombia)
Phase: En route (ENR)
Nature:Domestic Non Scheduled Passenger
Departure airport:Quito-Mariscal Sucre Airport (UIO/SEQU), Ecuador
Destination airport:Lago Agrio Airport (LGQ/SELA), Ecuador
The FH-227 departed Quito at 10:38 for a 37-minute flight to fly workers to an oil site in the Amazon jungle. The VFR flight was conducted at an altitude of 15,500 feet. At 10:50 the crew contacted the Nueva Loja Tower at Lago Agrio and reported near Olmedo. The Tower controller reported that runway 23 was in use and that the weather included a 6 knot wind at 020 degrees, temperature 29 degrees. The crew were then to have turned from 064 to 094 degrees, direct to Lago Agrio. They failed to do so and continued their present heading. After reporting 50 miles out at 10:59, they were cleared to descend. This was the last contact with the flight. The crew continued their descent until the airplane flew into the fog-shrouded side of El Tigre Mountain at an elevation of 11,916 feet.

Probable Cause:

CAUSA PROBABLE: "La Junta Investigadora de Accidentes estima que la probable causa del accidente fue LA PERDIDA DE LA CONCIENCIA SITUACIONAL por parte de la tripulación, al estar su atención centrada en aspectos que no tenían relación con el vuelo que se desarrollaba y por lo tanto descuidar la función primordial del vuelo que es la conducción de la aeronave y la toma de decisiones."
- La falla de la tripulación en mantener una cabina estéril
- La distracción continua de la tripulación durante todo el vuelo
- La falta de documentación técnica en la CIA que soporte la actividad aérea.
- La falta de instrucción de la tripulación en CRM, factores humanos y CFIT
- Las condiciones meteorológicas existentes al momento del accidente en el cerro El Tigre que imposibilitaron que la tripulación divise la montaña.
- La falta de sistemas de defensa en la aeronave (sistema de advertencia de proximidad con el terreno GPWS)

Accident investigation:
Investigating agency: DGAC Ecuador
Status: Investigation completed
Download report: Final report

Controlled Flight Into Terrain (CFIT) - Mountain

» El Universo


photo of Fairchild FH-227E HC-AYM
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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 Quito-Mariscal Sucre Airport to Lago Agrio Airport as the crow flies is 181 km (113 miles).
Accident location: Exact; as reported in the official accident report.

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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Fairchild FH-227

  • 78 built
  • 23rd loss
  • 15th fatal accident
  • 8th worst accident
» safety profile

  • 32nd worst accident (at the time)
  • 34th worst accident (currently)
» safety profile