190520-N-KO930-0630 BREMERTON, Wash. (May 21, 2019) Sailors practice firefighting drills on the flight deck of the aircraft carrier USS Nimitz (CVN 68). Nimitz is conducting a docking planned incremental availability at Puget Sound Naval Shipyard and Intermediate Maintenance Facility where the ship is receiving scheduled maintenance and upgrades. (U.S. Navy photo by Mass Communication Specialist Seaman Olivia Banmally Nichols/Released)