When "Tambor" had sailed across in front of the line of cruisers in an effort to see them more clearly, the lead ship had sighted the sub and ordered a change of course. "Mogami" had turned a bit late and had collided with , sailing just in front of her, and 40 feet of her bow was compressed and pushed nearly perpendicular to the rest of the ship. The next day, based on "Tambor's" report, and following the oil slick, dive bombers found the two damaged cruisers and their destroyer escorts and were able to sink "Mikuma"—the largest Japanese non-carrier sunk to that point in the war. This proved to be "Tambor's" best (and among her only) contribution to the battle.