Accident Convair CV-580 N73160, Friday 20 January 1989

Date:	Friday 20 January 1989
Time:	09:25
Type:	Convair CV-580
Owner/operator:	Aspen Airways, lsf Sierra Pacific Airlines
Registration:	N73160
MSN:	336
Year of manufacture:	1956
Total airframe hrs:	54108 hours
Engine model:	Allison 501-D13H
Fatalities:	Fatalities: 0 / Occupants: 29
Other fatalities:	0
Aircraft damage:	Substantial, written off
Category:	Accident
Location:	Buena Vista, CO - United States of America
Phase:	Landing
Nature:	Passenger - Scheduled
Departure airport:	Denver-Stapleton International Airport, CO (DEN/KDEN)
Destination airport:	Durango-La Plata Airport, CO (DRO/KDRO)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

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."

Accident investigation: