Docked since 2017, the attack submarine Boise (SSN-764) is undergoing early production work in Newport News, VA, as a precursor to an engineering overhaul supported by $600 million in incremental funding for fiscal year 2024, according to a Navy spokeswoman. The proposed engineering overhaul will include upgrades, repairs and a reset of the nuclear-powered submarine’s operating interval and certification, the spokeswoman told Inside Defense . The engineering overhaul is expected to be done at HII-NNS Shipyard in Newport News, where...