180801-N-IL409-0067 PACIFIC OCEAN (Aug. 1, 2018) Sailors participate in a foreign objects and debris walkdown after a mass casualty drill in the hangar bay aboard the Nimitz-class aircraft carrier USS John C. Stennis (CVN 74). John C. Stennis is conducting routine operations in the U.S. 3rd Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Joshua Leonard)