160303-N-CS953-037 PORTSMOUTH, Va. (March 3, 2016) -- Petty officer 2nd class Sailors from USS George H.W. Bush (CVN 77) begin the petty officer 1st class advancement exam in the galley of Auxillary Personnel Lighter 61 (APL 61). George H.W. Bush is undergoing a Planned Incremental Availability at Norfolk Naval Shipyard, Portsmouth. (U.S. Navy photo by Mass Communication Specialist 1st Class Tim Comerford/Released)