Following a tender availability, the guided-missile destroyer spent the first nine months of 1989 conducting local training operations, standing combat systems' inspections, and undergoing a phased maintenance availability at the Continental Marine Shipyard between 17 April and 5 July. After a final series of inspections in August, "Berkeley" got underway on 18 September in company with the carrier and six other warships bound for the Far East once more. Steaming north to the Sea of Japan, the warship participated in "PacEx '89," a joint exercise with units of the South Korean and Japanese Navies. During most of October, she carried out antiair, surface, and subsurface warfare exercises off the coasts of Korea and Japan, including four SEAL team insertions, before putting into Hong Kong on 31 October.