survivors; although unable to accommodate all of them, she approached to take on casualties. Finding none, S-37 took on the two American sailors among them, transferred provisions, dispatched enciphered messages on the boat's location to ABDA headquarters, and resumed her patrol. That afternoon, she again attempted to attack an enemy formation, but was sighted and underwent a combined depth charging and aerial bombing. March 1942 For the next week, S-37 remained in the area. Depth charge and aerial attacks were frequent, each one aggravating the condition of worn parts and equipment and resulting in mechanical and electrical failures and in leaks through disintegrating manhole and hatch gaskets. On 6 March 1942, she headed for Western Australia. Her major leak, through the engine room hatch, had been slowed to every 20 minutes. S-37 left a misleading oil slick toward Lombok Strait, then moved farther east before turning south. By 11 March 1942, she was clear of the East Indies, and on 19 March she arrived at Fremantle, Australia. April–June 1942 In April1942, S-37 continued on to Brisbane, Australia, where she joined Task Force 42 and, after a desperately needed six-week overhaul, departed for her fifth war patrol. Clearing Moreton Bay on 22 June 1942, she was in the Bismarck Islands by the end of June 1942, and, after patrolling in St. George Channel, she moved toward New Hanover. On 7 July 1942, she shifted back to the New Britain coast to patrol in the Lambert Point area. There, on the afternoon of 8 July 1942, she sighted a Japanese merchant ship escorted by a submarine chaser. Closing, she fired three torpedoes at 1405. Three explosions followed, sinking the 2,776-gross register ton Tenzan Maru. S-37 went to and ran silent on a northerly course as the submarine chaser dropped depth charges where the S-37 had been. July–November 1942 On 9 July 1942, S-37 patrolled between Dyaul and New Hanover. On 10 July, she moved into the New Hanover-Massau traffic lanes, and on 11 July she closed the New Ireland coast and continued south. For the next two days, she operated in the Rabaul area, then headed for Cape St. George and Australia. From 14 July, when a fire in the starboard main motor was quickly extinguished, she was plagued by mechanical and electrical failures. On 20 July, she sighted Cape Moreton Light, and on 21 July she moored alongside the submarine tender