"Takao" was refueling at Rabaul when the base was attacked on 5 November 1943 by American carrier aircraft. She was targeted by SBD Dauntless dive bombers from and hit by two bombs, killing 23 crewmen and damaging her steering. "Takao" was forced to return to Yokosuka for dry dock repairs. During the repair work, additional anti-aircraft guns were fitted, along with a Type 21 radar. Repairs were not complete until 18 January 1944.