to foul the propellers and stern planes. Despite the heavy seas, Chief Machinist's Mate B.F. Allen went over the side; cut the wreckage adrift and rigged two forward wing antennas. On 21 September, the submarine resumed her patrol off Attu, reconnoitering the approaches to its harbors. On 26 September, she was ordered to Kiska, and, on the afternoon of 28 September, she sighted a minelayer off Kiska Harbor. The enemy, however, detected her presence before she could close the target. Destroyers joined the minelayer, and S-34 once again became the hunted. Forty minutes and 47 depth charges later, she cleared the immediate area. A week later, she sighted and closed a Kiska-bound enemy submarine; but, as the torpedoes were readied, depth control was lost; and she failed to score. On 8 October, she headed home, arriving at Dutch Harbor on 11 October. Fourth war patrol Storms and heavy seas abounded in the western Aleutians during S-34’s fourth war patrol, 23 October to 21 November. Operating in and across the Japanese traffic routes from Kiska to Agattu and Attu and between Paramushiro and Attu, she sighted only one possible target, a submarine which disappeared before identification could be made. Fifth war patrol She got underway for her fifth war patrol on 5 December. On 9 December, she resumed operations to intercept Japanese shipping between the Kurils and the Aleutians. Twenty days later, she returned to Dutch Harbor. Overhaul In early January 1943, the S-boat sailed south. On 18 January, she arrived at San Diego where she remained until late April, undergoing overhaul; receiving radar, air conditioning, and improved communication and navigation equipment, and providing services to the West Coast Sound School. On 10 May, she returned to Dutch Harbor; and, on 13 May, she departed from that base to patrol again in the Kurils. Sixth war patrol By 22 May, S-34 was off Paramushiro and, for the next 12 days, she patrolled in the southern approaches to the island, and in Shumushu and Paramushiro strait. On the evening of 31 May 1943, she mistakenly torpedoed and sank the Soviet 2,600-gross register ton survey ship Chukcha off Torishimo Retto. On the evening of 3 June, she cleared the area. Seventh war patrol Arriving back at Dutch Harbor on 10 June, she departed again 11 days later. On 28 June, she approached the fog-bound Kurils; and, on 1 July, she moved toward the