The Cougar Ace is shown between Wide Bay and Ider Point on the northern side of Hog Island as it is towed Tuesday into Unalaska Bay. The ship, owned by Tokyo-based Mitsui O.S.K. Lines, had been listing since problems arose during a required open-sea transfer of ballast water on July 23, approximately 230 miles south of Adak. Company officials believe the ship rolled while the crew was adjusting the ballast tank, which regulates the ship's weight and balance. The ship's 23 crew members were hoisted to safety. The only injury was a broken ankle.