NNSY and PHNSY complete valve/piping replacement on San Francisco conversion 13 days early

Two shipyards separated by 5,000 miles collaborated on a major valve and piping replacement project aboard the USS San Francisco (SSN 711) conversion, completing the work 13 days early Aug. 12. San Francisco arrived at NNSY Jan. 25 for its conversion from an operational fast-attack submarine into a Moored Training Ship (MTS), the second of two next-generation MTS’s slated to train nuclear officers and Sailors at Nuclear Power Training Unit (NPTU) Charleston, South Carolina. The collaboration between the two shipyards began in 2016 after the NNSY project team identified a…

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