170919-N-NQ487-014 ATLANTIC OCEAN (Sept. 19, 2017) Sailors assemble an emergency crash barricade while conducting a general quarters drill on the flight deck of the aircraft carrier USS Harry S. Truman (CVN 75). Truman is underway conducting carrier qualifications in preparation for future operations. (U.S. Navy photo by Mass Communication Specialist Seaman Kaysee Lohmann/Released)