151104-N-FO714-010 PACIFIC OCEAN (Nov. 4, 2015) Aviation Structural Mechanic (Safety Equipment) 2nd Class Andrew Williams, from Corbett, Ore., tests the cabin pressure of an F/A-18F Super Hornet assigned to the Black Aces of Strike Fighter Squadron (VFA) 41 in USS John C. Stennis' (CVN 74) hangar bay. Sailors from the John C. Stennis Strike Group are participating in a sustainment training exercise (SUSTEX) to prepare for future deployments. (U.S. Navy photo by Mass Communication Specialist 3rd Class Deanna C. Gonzales/Released)