US Navy’s Virginia-class fast-attack submarine USS Mississippi (SSN-782) docked at Pearl Harbor Naval Shipyard & Intermediate Maintenance Facility (PHNSY & IMF) for an extended maintenance availability, just days before the USS Mississippi completed the same overhaul at the yard.
During the extended dry-docking selected restricted availability, the shipyard project team and ship’s crew will conduct routine maintenance and modernization efforts designed to ensure Mississippi remains fully operational for its planned 33-year service life.
The project is expected to finish in 2022 and will take approximately 345,000 work-days to complete.
Mississippi’s predecessor, USS Missouri (SSN 780), completed the procedure five days early, in what marked the first time any shipyard has completed two consecutive Virginia-class extended dry-docking selected restricted availabilities (EDSRA) ahead of schedule. USS North Carolina completed its EDSRA two days early on Dec. 1, 2018.
“The shipyard project team and ship’s crew have been phenomenal partners during this entire availability, which is why they were able to shave five days off the schedule. When you consider that the team has been working under COVID-19 safety protocols, this early delivery is even more amazing,” said Vice Adm. Tom Moore, commander, Naval Sea Systems Command (NAVSEA). “Everyone at the shipyard has been working together to minimize the spread of virus and maximize our mission and the Nō Ka ‘Oi shipyard lived up to its legacy with Missouri.”
Missouri began its maintenance period almost 24 months ago. Since then, more than 2.2 million work-hours and more than 20,000 individual jobs were required to keep the boat fit for service. The availability officially ended on May 21, following the submarine’s successful sea trials and certification.