Shortly before midnight on 15 November, "Tambor" fired three torpedoes at a patrol boat, but scored no hits. Forty-five minutes later, three more missed. At 06:10, the submarine's commander decided to battle on the surface with his deck guns; the escort fired back, and a "Tambor" crewmen was severely wounded. Thirty minutes later, as the target began to sink, "Tambor"s crew took two prisoners from the water. She transferred them and the wounded crewman to on 18 November. {The sunken vessel was the guardship "Takashiro Maru"}"Tambor" ended her last war patrol at Pearl Harbor on 30 November, to be retired from combat.