JOINT BASE PEARL HARBOR HICKAM, Hawaii (July 27, 2021) Pearl Harbor Naval Shipyard & Intermediate Maintenance Facility successfully undocked the Los Angeles-class fast-attack submarine USS Topeka (SSN 754) on time commencing a two-day evolution on July 27, 2021. This undocking is a major milestone in the submarine's docking selected restricted availability (DSRA). Each undocking is a complex evolution that requires teamwork across the entire shipyard to ensure a safe and on-time event. (U.S. Navy photo by Amanda Urena)