150321-GZ638-N-013 EAST CHINA SEA - Naval Aircrewman 3rd Class Denzal Oneal, from Grayslake, Ill., and Aviation Ordnanceman 3rd Class Miguel Pua, from Waipahu, Hawaii, perform maintenance on a GAL-21 50 caliber gun in the hangar bay aboard forward-deployed amphibious assault ship USS Bonhomme Richard. Bonhomme Richard is the lead ship of the Bonhomme Richard Amphibious Ready Group and along with embarked 31st Marine Expeditionary Unit, is currently conducting a certification exercise.