On 15 December 1972, "Barb" returned to Hawaii. From January to early March 1973, she carried out normal training missions out of her home port. On 10 March, she stood out of Pearl Harbor on a three-month overseas assignment. Following another eight-week special operation, she visited Pusan, South Korea, for four days during the second week in May. From Pusan, the submarine sailed back to the Marianas, in the vicinity of which she operated for about a month before heading back to Hawaii on 10 June. She reentered Pearl Harbor on the 18th.