Los Angeles-Class Submarine USS Columbia to Undergo Overhaul to Extend Its Service Life
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The USS Columbia nuclear attack submarine (SSN 771), of the Los Angeles class, arrived with its crew on Thursday, October 29, 2026 at the Portsmouth Naval Shipyard, in Kittery (Maine). There it will undergo a planned revision and modernization, according to the note of the shipyard. They are part of the Program of Extension of Useful Life, or SLEP. ... Continue reading "The USS Columbia submarine arrives at the shipyard of Portsmouth to extend i…
USS Columbia Arrives at Portsmouth Naval Shipyard - Seapower Magazine
KITTERY, Maine — Los Angeles-class attack submarine USS Columbia (SSN 771) and its crew arrived at Portsmouth Naval Shipyard, Thursday, Oct. 29, for a scheduled maintenance and modernization period. While at the shipyard, Columbia will undergo an overhaul as part of the Service Life Extension Program to ensure the submarine continues to protect the nation with unlimited endurance and stealth. “As Columbia enters the Service Life Extension Progra…
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