The vast majority of the Navy submarine maintenance has occurred at public shipyards over the last decade, which, according to a recent Government Accountability Office report found, has only gotten the job done on schedule 11% of the time.

There are four public naval domestic shipyards that provide most of the maintenance on attack submarines and other nuclear-powered vessels: Portsmouth Naval Shipyard, Norfolk Naval Shipyard, Puget Sound Naval Shipyard, and Pearl Harbor Naval Shipyard. From fiscal 2016 through fiscal 2025, those four facilities took longer than planned for 89% of the time to complete depot-level maintenance on attack subs, according to the GAO report, which was released on Thursday.

Recommended Stories

Esper cites China as motivation to boost funding to Navy

Navy calls for major fleet size boost to counter China and Russia

Navy will fall far below mandated 355 ships as China churns out war vessels