The R6D-1 &ndash; the U.S. Navy version of the United States Air Force C-118 Liftmaster and the civilian Douglas DC-6B airliner &ndash; was carrying a crew of nine and 50 passengers on a scheduled Military Air Transport Service flight from RAF Lakenheath , England , to Lajes Field in the Azores on 10 October 1956 when it disappeared over the Atlantic Ocean about 590 km ( 370 miles ) southwest of Land ’s End , England , at approximately 22:10 . All of the passengers were personnel of the U.S. Air Forces 307th Bombardment Wing stationed at Lincoln Air Force Base , Nebraska , returning to the United States from 90 days of temporary duty in England . The disappearance was the second major accident involving a Navy R6D-1 in 19 months , an R6D-1 having crashed in Hawaii in March 1955
crashed
1955 Hawaii R6D-1 crash
1956 Atlantic R6D-1 disappearance