 After an assignment in the Strait of Juan de Fuca-San Juan Islands area of Washington during the winter of 1940-1941, she returned to the Aleutians for the 1941 field season to survey the waters westward from Yunaska Island.After the conclusion of the 1941 season in the Aleutians, she began survey work around Midway Atoll, but was recalled from Midway after the Japanese attack on Pearl Harbor of 7 December 1941 brought the United States into World War II.Steaming from Midway to Honolulu, Territory of Hawaii, she rescued the crew of an aircraft which had ditched in the Pacific Ocean due to fuel exhaustion.