motor launch for 45 days. On 6 January 1945 she departed Majuro as a part of a wolf pack, for a patrol in the Yellow Sea. On 28 January she contacted a three ship convoy with four escorts off Kokuzan To. With in contact, the Pompon made two submerged night approaches only to have the alert escorts drive her off each time. While two escorts pinned her down astern of the convoy, Spadefish slipped in on the disengaged side and sank two of the ships and one of the escorts. Pompon surfaced in time to watch the sinkings and gave chase to the one remaining ship. Again she was deterred from attack by gunfire and a trailing escort. The next morning, while making a morning trim dive, the conning tower hatch failed. Before the dive could be halted the ship had reached a depth of , partially flooding the conning tower and control room, and completely flooding the pump room. Pompon crept homeward, having to run awash until the blower could be partially restored. While struggling along in this condition, she blundered into an enemy convoy and was sighted. The escorts forced her to dive despite her dangerous condition, but she miraculously escaped. found her one day out of Midway and led her in on 11 February. Eighth and ninth war patrols, March – July 1945 Repairs completed, Pompon departed Midway 30 March for her eighth patrol area along the coasts of China and Formosa. Her only contacts, a motor sampan, a hospital ship, and 106 planes, provided excellent diving experience, but poor hunting. Ten survivors from a downed PBM were taken from for transportation to Guam, where Pompon arrived 24 May. During her ninth, and last, war patrol from 18 June to 22 July, she operated as a lifeguard in the Truk area. There were no ship contacts and few plane contacts. She was at Guam when the news of the war's end came. On 22 August she began her homeward voyage, arriving at New Orleans on 19 September. Post-war service as radar picket On 11 May 1946 Pompon was decommissioned and placed in the U.S. Atlantic Reserve Fleet, New London. On 15 June 1953 she recommissioned as SSR-267, after being converted to the latest type radar picket submarine. After a shakedown cruise to Guantanamo Bay, Cuba, she reported to her new home port at Norfolk, Va. In November