Senior Airman Ashlee Lefrois of the 914th Airlift Wing wipes off dirt and grime from a C-130 in hanger 901, May 27, 2010, Niagara Falls Air Reserve Station, Niagara Falls, NY. Aircraft become dirty from exhaust and from the particulates in the air and are routinely washed down as part of maintenance. (U.S. Air Force photo by Staff Sgt. Joseph McKee)