Estado:	Final
Fecha:	20 ENE 1989
Hora:	09:25
Tipo:	Convair CV-580
Operado por:	Aspen Airways
Alquilado a :	Sierra Pacific Airlines
Registración:	N73160
Numéro de série:	336
Año de Construcción:	1956
Horas Totales de la Célula:	54108
Motores:	2 Allison 501-D13H
Tripulación:	Fatalidades: 0 / Ocupantes: 3
Pasajeros:	Fatalidades: 0 / Ocupantes: 26
Total:	Fatalidades: 0 / Ocupantes: 29
Daños en la Aeronave:	Considerable
Consecuencias:	Written off (damaged beyond repair)
Ubicación:	Buena Vista, CO (Estados Unidos de América)
Fase:	En route / landing (ENR/LDG)
Naturaleza:	Vuelo Doméstico Programado
Aeropuerto de Salida:	Denver-Stapleton International Airport, CO (DEN/KDEN), Estados Unidos de América
Aeropuerto de Llegada:	Durango-La Plata Airport, CO (DRO), Estados Unidos de América

Descripción:
The no. 2 engine failed at FL200 and the aircraft returned. The remaining no. 1 engine also failed and the aircraft landed on a dirt road, hit a fence and a log pile causing the nosegear to collapse.

PROBABLE CAUSE: "Inadvertent deactivation of fuel to the left engine as the pilot was making a precautionary shutdown of the right engine, and his failure to follow the emergency checklist procedure. Related factors were: low gearbox oil pressure (at flight altitude), and uneven terrain that was encountered during the emergency landing."

Fuentes:
» ICAO Adrep Summary 2/91 (#7)
» NTSB