"Parche" attacked three luggers escorted by a small flat vessel on the afternoon of the next day, and sank two. She sank several trawlers by gunfire on 23 June. Two days later she sighted three large ships and six escorts headed north along the coast, one of the most tempting convoys seen for some months in Japanese home waters. After "Parche's" attack the escorts shook the sub up considerably with depth charges four and a half hours, before she managed to work away and resume her patrol, leaving an ex-Gunboat sunk and another ship badly damaged.