Europa (AK-81) was never commissioned and thus never bore the USS designation. The ship was laid down 2 March 1942 as MV William Lester, a Maritime Commission type (N3-M-A1) hull, under Maritime Commission contract (MC hull 464), at the Penn-Jersey Shipbuilding Company of Camden, New Jersey and launched 7 December 1942. Assigned to the Navy as Europa (AK-81), named for Europa, the smallest of the Galilean moons of planet Jupiter, scheduled to become an Enceladus-class cargo ship. She was delivered to the Navy uncompleted 24 November 1943; transferred the next day, 25 November 1943, to the United States Army; stricken from Navy lists 6 December 1943.