One of several US supplementary carriers around at the time. This aircraft was delivered to ONA as N1034F on 06 Jun1977 so was just over a year old when this picture was taken. Apparently leased to Spantax the day before this photo was taken on 24 Oct 1978 it was bought by them in Dec 1978 and registered EC-DEG. It was destroyed by fire after an aborted take off at Malaga Airport on 13 Sep 1982.