170615-N-BR087-281 BREMERTON, Wash (June 15, 2017) Sailors combat a simulated fire during an aircraft casualty drill aboard the aircraft carrier USS John C. Stennis' (CVN 74). These drills are conducted to keep the crew ready for upcoming flight deck certifications. John C. Stennis is conducting a planned incremental availability at Puget Sound Naval Shipyard and Intermediate Maintenance Facility, during which the ship is undergoing scheduled maintenance and upgrades.(U.S. Navy photo by Mass Communication Specialist 3rd Class Cole C. Pielop/Released)