150220-N-UK306-066 SAN DIEGO (Feb. 20, 2015) – Aviation Boatswain’s Mate (Handling) 3rd Class Angel Villegas, a native of South El Monte, Calif., installs a safety pin to a potassium bicarbonate dry chemical bottle on the flight deck of the aircraft carrier USS Ronald Reagan (CVN 76). Reagan is homeported in San Diego and is undergoing a Planned Incremental Availability (PIA) maintenance period at Naval Base Coronado. (U.S. Navy photo by Mass Communication Specialist 3rd Class Timothy Schumaker/Released)