Pearl Harbor Naval Shipyard completes USS Columbia availability

May 18, 2021 – Pearl Harbor Naval Shipyard & Intermediate Maintenance Facility (PHNSY & IMF) completed all planned maintenance and modernization work on USS Columbia (SSN 771) May 17, delivering the Los Angeles-class fast-attack submarine back to the fleet. “With challenges to overcome during the availability, seeing her return from successful sea trials and achieving certification shows the results of…

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