Former United Airlines Convair 340 c/n 55 converted in 1969. Ex N73140 with Frontier Airlines and Metroflight. Entered Service with TAM in September 1991 and withdrawn from use at La Paz in 1996. This was the second CV580 to wear the serial TAM70, the previous aircraft c/n 39 was in service between November 1974 and October 1979 before being sold as N81MR.