Built in 1946 as N37501 for United Airlines. Withdrawn in 1968 and re-registered as N375ED in 1973. Converted to a freighter in 1975 and subsequently operated by various freight companies. Re-registered as N19544 in 1981, N117PM in 1984, CP-2110 by 1991 and CP-2250 in 1993. Seized by the Peruvian Government at Lima in 1995 and with the Peruvian National Police as PNP-236 by 1997. Transferred to the Peruvian Air Force as 381 in 1997 and withdrawn at Lima by 2001. Preserved and displayed at its current location since 2005.

Delivered to United Airlines as N37501 in 1946. Sold in 1971. Reregistered as N375ED in 1973. Converted to a freighter in 1975. Reregistered as N19544 in 1981 then N117PM in 1984, CP-2110 by 1991 and CP-2250 in 1993. Seized by the Peruvian Government at Lima in 1995. To the Peruvian National Police as PNP-236 by 1997 then to the Peruvian Air Force as 381 in 1997. Withdrawn from use at Lima by 2001 and later preserved.

Delivered to United Airlines as N37501 in 1946. Sold in 1971. Reregistered as N375ED in 1973. Converted to a freighter in 1975. Reregistered as N19544 in 1981 then N117PM in 1984, CP-2110 by 1991 and CP-2250 in 1993. Seized by the Peruvian Government at Lima in 1995. To the Peruvian National Police as PNP-236 by 1997 then to the Peruvian Air Force as 381 in 1997. Withdrawn from use at Lima by 2001 and later preserved.

Note its line number! Registered to Aeronautique Engineering at the time. Originally delivered to United Air Lines as N37501 in Nov 1946. Among a long list of other operators was Mackey International as N375ED. From Oct 83 it went on to fly with several more operators finishing with the Peruvian Air Force as 381. Reported as retired in late 1997 after 51 years in service.

Reregistered N19544 in December 1981