Petty Officer 2nd Class Mary Doyle (left) and Seaman Alex Pappas, both crew members from Coast Guard Aids to Navigation Team Philadelphia, service a navigational aid Monday, Sept. 8, 2014, on the Delaware River near Burlington, N.J. ANT Philadelphia’s crew members inspect, maintain, and service navigational aids throughout their area of responsibility. (U.S. Coast Guard photo by Petty Officer 1st Class Nick Ameen)