Narrative:
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."
Forced landing outside airport
» NTSB
accident date: 20-01-1989
type: Convair CV-580
registration: N73160
| Status: | Accident investigation report completed and information captured |
| Date: | Friday 20 January 1989 |
| Time: | 09:25 |
| Type: |  Convair CV-580 |
| Operating for: | Aspen Airways |
| Leased from: | Sierra Pacific Airlines |
| Registration: | N73160 |
| MSN: | 336 |
| First flight: | 1956 |
| Total airframe hrs: | 54108 |
| Engines: | 2 Allison 501-D13H |
| Crew: | Fatalities: 0 / Occupants: 3 |
| Passengers: | Fatalities: 0 / Occupants: 26 |
| Total: | Fatalities: 0 / Occupants: 29 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | Buena Vista, CO ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Domestic Scheduled Passenger |
| Departure airport: | Denver-Stapleton International Airport, CO (DEN/KDEN), United States of America |
| Durango-La Plata Airport, CO (DRO/KDRO), United States of America |
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:
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."
Accident investigation:
 |
|
Classification:
All engine powerlossForced landing outside airport
Sources:
» ICAO Adrep Summary 2/91 (#7)» NTSB
Photos
accident date: 20-01-1989
type: Convair CV-580
registration: N73160
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 Denver-Stapleton International Airport, CO to Durango-La Plata Airport, CO as the crow flies is 382 km (239 miles).
Distance from Denver-Stapleton International Airport, CO to Durango-La Plata Airport, CO as the crow flies is 382 km (239 miles).
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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