During her seventh war patrol, from 23 April to 27 May 1943 off Manila, she sank five small craft with gunfire; torpedoed and sank the 703-ton Japanese freighter "Aso Maru" south of the Negros Islands on 9 May, then six days later attacked a convoy west of Mindoro, sinking the 3197-ton passenger-cargo ship "Moikai Maru" and the 4361-ton "Indus Maru".