160106-N-GO179-003 PENSACOLA, Fla. (Jan. 6, 2016) Chief of Naval Operations (CNO) Adm. John M. Richardson observes a U.S. Marine Corps aviation structural mechanic student during a class at the Naval Air Technical Training Center (NATTC) aboard Naval Air Station Pensacola, Fla. Richardson, along with Master Chief Petty Officer of the Navy (AW/NAC) Michael D. Stevens, visited NAS Pensacola-area commands to observe aviation training. (U.S. Navy photo by Bruce Cummins/Released)