Petty Officer 2nd Class Johnpaulo Solon, aviation support equipment technician, from Las Vegas, and Petty Officer 1st Class Serafin D. Phillips, aviation support equipment technician, from Galena, Ill., perform maintenance on a tow tractor engine used to maneuver aircraft in the hangar bays and on the flight deck aboard the nuclear-powered aircraft carrier USS Ronald Reagan. Ronald Reagan is currently underway conducting test and certifications in preparation for its upcoming deployment.