PORTSMOUTH, Va. (April 20, 2021) Engineman 2nd Class Haven Gilmore, from Boise, Idaho, takes temperature and pressure readings while operating an emergency diesel generator in an engine room aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75). Truman is currently in Norfolk Naval Shipyard for its Extended Carrier Incremental Availability (ECIA) period. (U.S. Navy photo by Mass Communication Specialist Seaman Tyler Cardoza)