President Barack Obama and Airmen from the Presidential Logistics Squadron stand in formation in front of Air Force One, an 89th Airlift Wing VC-25, at Joint Base Andrews, Md., prior to Obama’s trip to New York City May 4, 2015. The PLS is responsible for maintaining the VC-25s. This particular VC-25 returned to service after an 18-month heavy, depot-level maintenance cycle.