"PC-1119" transferred her base to Milne Bay, New Guinea, in September, and from there she escorted convoys moving men and supplies along the coast of Huon Gulf. On 2 October she supported amphibious landings at Finschhafen, which was to become the jumping off point for the invasion of New Britain. Transferred to the 7th Amphibious Force on 6 December, she supported the initial invasion during landings at Arawe, New Britain, on 17 December. Nine days later, she supported landings by the 1st Marine Division at Cape Gloucester; then, after steaming along the northern coast of New Guinea, she participated in the assault against Saidor on 2 January 1944, assisting in the landing of troops of the 32nd Infantry Division.