In November 1945 it returned with the 509th Composite Group to Roswell Army Air Field, New Mexico, where it remained for the rest of its flying career, except for a brief period when it was assigned to Task Force 1.5 for Operation Crossroads nuclear tests at Bikini Atoll in July 1946. It returned to the 509th, now designated the 509th Bombardment Group, in September. On 3 September 1948, during a polar navigation training mission, it developed an engine problem after takeoff from Goose Bay Air Base, Labrador, and ran off the end of the runway when attempting to land. Heavily damaged, it never flew again, and was eventually scrapped at Goose Bay in September 1949, despite its historical significance.