191017-N-VQ790-1005 NEWPORT NEWS, Va. (Oct. 17, 2019) Hospital Corpsman John Davenport, left, assigned to the medical department aboard the Nimitz-class aircraft carrier USS George Washington (CVN 73), prepares to administer a flu shot to Aviation Boatswain’s Mate 2nd Class Dale Edwards, assigned to air department aboard George Washington. George Washington is undergoing refueling complex overhaul (RCOH) at the Newport News Shipyard. RCOH is a nearly four-year project performed only once during a carrier’s 50-year service life that includes refueling the ship’s two nuclear reactors, as well as significant repairs, upgrades, and modernization. (U.S. Navy photo by Mass Communication Specialist 2nd Class Trey Hutcheson/Released)