Delivered to United Air Lines as CV340-31 N73145 in 1953. Sold N10CR in 1959 and converted to a CV440. To Frontier as N73145 in 1966 and converted to a CV580 in 1967. To Frontier Commuter/Combs Airways in 1983 then to American Eagle/Metro Airlines in 1985. Traded in to SAAB and stored at Marana in 1987. Converted to a freighter then to Avesco as HK-3740 in 1992. To Taxsur in 1993 who ceased operations in 1995 and it was stored at Bogota. Still there in 2001. Later scrapped.

This former American Eagle Convair 580 was imported into Colombia in 1992 and for a short time wore the '-X' suffix to it's registration, later photos on AirHistory.net show it without. Taxsur ceased flying in 1995 and after several years in storage at Bogota the aircraft was scrapped in 2001

Delivered to United Air Lines as CV340-31 N73145 in 1953. Sold N10CR in 1959 and converted to a CV440. To Frontier as N73145 in 1966 and converted to a CV580 in 1967. To Frontier Commuter/Combs Airways in 1983 then to American Eagle/Metro Airlines in 1985. Traded in to SAAB and stored at Marana in 1987. Converted to a freighter then to Avesco as HK-3740 in 1992. To Taxsur in 1993 who ceased operations in 1995 and it was stored at Bogota. Still there in 2001. Later scrapped.

Sold in Colombia as HK-3740 in August 1992.

Built as a CV-340 for United and converted to turboprop in 5.67 while owned by Frontier (N73145), this Convair was sold to Avesca Colombia in 8.92 after storage at Marana, going on to Taxsur in 12.93. Stored and up for sale at BOG in 2001 but scrapped since