Originally US Army Air Force 42-92983. It then went to Pan American Airways in Mar 1946 as NC54705 and Spantax SA in Jun 1960 first as EC-WQB and shortly after EC-AQB. Acquired by Aeroflete in May 1968.

Ex Pan American and here on delivery to Spantax where it became EC-AQB. Later to Aeroflete then withdrawn from use in 1974. At this period aircraft new to the register initially wore the letter 'W' in place of the 'A'. This only worked up to EC-AZZ without duplicating allocations which is probably why the EC-### system later came into use.