150217-N-YO638-100 SAN DIEGO (Feb. 17, 2015) Electricians Mate 3rd Class Zach Castiller, from Belleville, Ill., and Electricians Mate 2nd Class Zach Laconde, from Syracuse, N.Y., troubleshoot a special frequency motor generator aboard the aircraft carrier USS Ronald Reagan (CVN 76). Ronald Reagan is homeported in San Diego and is undergoing a planned incremental availability maintenance period at Naval Base Coronado. (U.S. Navy photo by Mass Communication Specialist Seaman Cody Hendrix/Released)