Aviation Boatswain’s Mate (Fuel) Airman Alyssa Guldin, assigned to the aircraft carrier USS Ronald Reagan (CVN 76), from Philadelphia, takes the E-4 advancement exam aboard the barge ship APL 65. Ronald Reagan is homeported in San Diego and undergoing a planned incremental availability maintenance period at Naval Base Coronado. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jacob Estes/Released)