180201-N-FE442-056 NORFOLK, Va (Feb. 1, 2018) Electrician's Mate 2nd Class Christopher Perry rebuilds an engine aboard the aircraft carrier USS George H.W. Bush (CVN 77). The ship is in port in Norfolk, Va., conducting routine maintenance in preparation for the Board of Inspection and Survey (INSURV). (U.S. Navy photo by Mass Communication Specialist 3rd Class Matt Matlage/Released)