Los Angeles-class attack submarine USS Helena (SSN-725) arrives at Norfolk Naval Shipyard for a high-priority docking continuous maintenance availability on Aug. 20, 2015. US Navy Photo
Delays in maintenance have resulted in at least 1,891 lost operational days for the U.S. attack submarine fleet and cost the Navy about $1.5 billion to support boats that can’t go to sea, according to a Monday report from the Government Accountability Office.
From 2008 to 2018, most of the planned repairs for the...