170915-N-RT036-107 HAMPTON, Va. (Sept. 15, 2017) Command Master Chief of the aircraft carrier USS George Washington (CVN 73) James Torcorzic, left, shakes hands with Chief Aviation Boatswain's Mate (Equipment) David Hooker after a chief pinning ceremony at Bayview Commonwealth Center at Langley Air Force Base. George Washington is undergoing a refueling and complex overhaul (RCOH) at Newport News Shipyard. RCOH is a four-year project performed only once during a carrier’s 50-year service life that includes refueling of the ship’s two nuclear reactors, significant repairs, upgrades and modernizations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jessica Gomez/Released)