but was diverted north and west of the island to provide weather reporting services to the force scheduled to bombard Kiska on 7 August. After the raid, she returned to Dutch Harbor, thence proceeded to San Diego, where for six weeks she underwent overhaul and provided services to the sound school. Fourth war patrol On 20 October, she returned to Unalaska; and, on 26 October, she cleared the harbor for her fourth war patrol. From then until her return on 22 November, she battled heavy seas, storms, and problems arising from her inadequate and outmoded equipment as she hunted the Paramushiro-Attu-Kiska convoy routes. On 25 November, she returned to Dutch Harbor. Fifth war patrol Cold weather added icing to the climatic hazards of the northern Pacific Ocean; but, on 11 December, S-35 headed out of Dutch Harbor again. On 15 December, she commenced operations to intercept enemy traffic to Attu and Kiska; but, on 17 December, a case of acute appendicitis forced her to Adak, Alaska, where she was to transfer the sick man to seaplane tender for treatment. On 18 December, she approached the rendezvous point but was sighted by enemy planes. On the morning of 19 December, she completed the transfer; then resumed patrol east of Kiska. On the afternoon of 21 December, she ran into a storm while surfaced off Amchitka; and, by early evening, waves were smashing over the bridge and cascading into the control room. The conning tower hatch was ordered shut. Almost simultaneously, another huge wave crashed over the bridge, flinging the captain, Lieutenant H. S. Monroe, into the hatch. Injured, Monroe retired to his quarters, only to be roused a short time later, about 18:30, by cries of "fire" in the control room. Electric arcs and blue flames spewed out of the main power cables coming from the forward battery. Smoke filled the room; and water, which had caused the fire by soaking cables and causing a short, rose in the control room bilges. The fire was extinguished in the control room but immediately broke out in the forward battery. Fire extinguishers had no effect. The forward two compartments were abandoned and the battery was secured. Fire again broke out in the control room; and, as in the forward battery, extinguishers were of little help. Smoke filled the control room. The engines were stopped. The room was abandoned and sealed. Short circuits spread.