Operated as N5126 from 1959 with General Motors, initially as a Convair 440 and converted to a CV580 in 1960. Sold by them in 1981 and exported to Venezuela in 1983 as YV-83C with AVENSA. Moved to Colombia in November 1991 initially as HK-3674-X and later HK-3674. Operated by SERCA (later SEC Colombia) until 1997 when withdrawn and scrapped at Bogota

Built as Convair 340 N74114 for United airlines. Sold to ESSO in 1957 and registered N200A, it was converted to Convair 580 in 1961 and flew for several corporate operators as N2004/N328VP and N580SC before export to AVESCA in Colombia, initially as HK-3666-X, in April 1991. Operating in this striking colour scheme for SERCA by December 1991 and re-registered as HK-3666 in 1992, the aircraft had a luxury executive interior fit. Believed later destroyed at Caracas.

Originally a United CV-340, this Convair served Esso and a number of other non-airline operators after turboprop conversion in 2.61. Bought by Avesca Colombia 4.91, to Serca in 12.91 and company renamed SEC Colombia in 1993. Aircraft destroyed at Caracas/Maiquetia