190913-N-HC646-0348 OAK HARBOR, Wash. (Sept. 13, 2019) Chief Aviation Structural Mechanic Jacob Cristina, assigned to Patrol Squadron (VP) 4, is pinned to the rank of chief petty officer by his family during the fiscal year 2020 Naval Air Station Whidbey Island chief petty officer pinning ceremony held at Oak Harbor High School. The ceremony commemorates the culmination of a six-week-long intense training cycle preparing chief selectees to become the next generation of chief petty officers to lead and train junior Sailors in the fleet. (U.S. Navy photo by Mass Communication Specialist 2nd Class Marc Cuenca/Released)