PACIFIC OCEAN (Oct. 18, 2016) Seaman Louis Armstrong, of Los Angeles, performs pre-flight maintenance on an F/A-18F from the "Black Knights" of Strike Fighter Squadron (VFA) 154 on the ship's flight deck. Nimitz is underway to complete flight deck certification and carrier qualifications for an upcoming 2017 deployment. (U.S. Navy photo by Petty Officer 2nd Class Siobhana R. McEwen)