The ship remained in Truk Lagoon until 10 February 1944, when she returned to Yokosuka. On 24 February, "Musashi" sailed for Palau, carrying one Imperial Japanese Army battalion and another of Special Naval Landing Forces and their equipment. After losing most of her deck cargo during a typhoon, she arrived at Palau on 29 February and remained there for the next month. On 29 March, "Musashi" departed Palau under cover of darkness to avoid an expected air raid, and encountered the submarine , which fired six torpedoes at the battleship; five of them missed, but the sixth blew a hole in diameter near the bow, flooding her with 3000 tonnes of water. The torpedo hit killed seven crewmen and wounded another eleven. After temporary repairs, "Musashi" sailed for Japan later that night and arrived at Kure Naval Arsenal on 3 April. From 10 to 22 April, she was repaired, while her anti-aircraft armament was substantially increased in the space freed up by the removal of the beam-mounted 6.1 inch (155-mm) triple turrets. When she undocked on 22 April, the ship's secondary battery comprised six 15.5 cm guns, twenty-four 12.7 cm guns, one hundred and thirty 25 mm guns, and four 13.2 mm machine guns. She also received new radars (which were still primitive compared to American equipment), and depth-charge rails were installed on her fantail.