170221-N-UM507-027 PACIFIC OCEAN (Feb. 21, 2017) Air Traffic Controller Airman Joshua D. Laboy works as the position plotter in the Air Operation Center aboard the aircraft carrier USS Nimitz (CVN 68). The ship is underway conducting fleet replacement squadron carrier qualifications. (U.S. Navy photo by Mass Communication Specialist 3rd Class Weston A. Mohr/Released)