AVIATION CONCENTRATION U.S. Navy Petty Officer 3rd Class Justin Petersik performs routine maintenance on a SH-60F helicopter in the hangar bay of the aircraft carrier USS Dwight D. Eisenhower in the Arabian Sea, Jan. 24, 2010. Petersik is an aviation structural mechanic. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 418315-I-XAP92-072.jpg Photo Gallery