190517-N-HA101-0175 BREMERTON, Wash. (May 17, 2019) Sailors participate in an aircraft firefighting drill 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 3rd Class Jessica Tukes/Released)