CF-YAP-X had its first flight in August 1971. It was sold to ACES in January 1972 and became HK-1287X. In 1976 it was withdrawn from use and stored. It returned to Saunders in August 1976, then C-GYCR. It was bought by Air Atonabee in August 1979. In 1984 the company was named City Express. C-GYCR at Montreal Airport