161219-N-VN584-178 SAN DIEGO (Dec. 19, 2016) Sailors tighten bolts on an aircraft catapult track on the flight deck of the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is currently conducting exercises in the U.S. 3rd Fleet area of operations at the conclusion of its six month Planned Incremental Availability. (U.S. Navy photo by Seaman Alex Corona/Released)