"Facility" underwent shakedown training and proceeded to San Pedro, California, and thence to Pearl Harbor, arriving on 17 February. After escorting the minelayer to Eniwetok early in March, "Facility" began sweeping under the command of Task Group TG 52.5 preliminary to the assault landings on Okinawa on 1 April. She continued to support the operation until damaged by a near miss during a heavy suicide attack and was forced to put into Ulithi on 22 April for repairs. She resumed sweeping operations, and, after replenishing supplies in Buckner Bay, joined Task Group TG 52.4 to participate with TG 52.3 in clearing the approaches to Nagasaki, Japan.