Built at Chicago in 08.44 to USAAF order as C-54A 42-72261 but delivered direct to US Navy as R5D-1 BuAer 50844. Sold to Douglas 06.46 who converted it to DC-4 No. 37 for Pan Am as N88934 delivered 06.47. Transferred to Panagra 1949. Sold to Spanish AF T4-10 in 1962. Preserved at Cuatro Vientos from 1979.