Divers from the State of Hawaii Department of Land and Natural Resources and the U.S. Navy have been working cooperatively over the course of this week to assess the extent of the grounding scar from USS Port Royal (CG 73) and to undertake emergency restoration activities on the impacted reef. Meanwhile, the guided-missile cruiser entered drydock at Pearl Harbor Naval Shipyard Feb. 18 to repair damage sustained when it ran aground the night of Feb. 5 a half-mile off Honolulu Airport's Reef Runway. After three unsuccessful attempts, the Pearl Harbor ship was refloated early Feb.