161119-N-JH929-056 CORONADO, Ca. (Nov. 16, 2016) Sailors assigned to the aircraft carrier USS Nimitz (CVN 68) take measurments while conducting maintenance on the ship's Fresnel Lens Optical Landing System on the flight deck. Nimitz is preparing to get underway to conduct routine operations in preparation for an upcoming 2017 deployment. (U.S. Navy photo by Seaman Cole Schroeder/Released)