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Sailors aboard the Virginia-class fast-attack submarine USS North Carolina (SSN 777) throw lines as the boat enters Dry Dock 1 at Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) Sept. 4, 2024. North Carolina is at the shipyard for its Depot Modernization Period, where the shipyard project team and ship's crew will give the vessel its scheduled maintenance upgrades and makeover. PHNSY & IMF's mission is to repair, maintain, and modernize Navy fast-attack submarines and surface ships, in order to keep the Navy's fleet "Fit to Fight." (Justice Vannatta)