Delivered to Pan Am as N491PA in 1968. To Lan-Chile as CC-CEJ in 1979 and Atasco Leasing as N1181Z in 1981. Leased to Faucett and then to Guyana Airways in 1982. Stored at Marana in 1984. To Boeing in 1986 and used for parts in the KC-135E program at Davis-Monthan AFB.