The U.S. Navy has abandoned plans to return the Los Angeles class attack submarine USS Boise to active duty. This brings an end to the saga of a still- incomplete major overhaul of the boat, which has lasted more than a decade now. In that time, it has become a poster child for the Navy’s worrisome struggles to tackle huge maintenance backlogs, as well as larger concerns about the availability, or lack thereof, of naval shipyard capacity. in the United States.