Staff Sgt. Kyle Pullum, 2nd Civil Engineer Squadron Heavy Repair section, operates a street sweeper on Barksdale Air Force Base, La., April 25, 2013. Heavy Repair Airmen, also known as "Dirt Boys", lay down pavement, operate heavy equipment and maintain the roads and flightline in order to support Barksdale's mission of delivering precision munitions to the battlefield. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
A street sweeper from the 2nd Civil Engineer Squadron Heavy Repair section cleans a road on Barksdale Air Force Base, La., April 25, 2013. Street sweepers help maintain Barksdale's infrastructure by removing dirt and debris from the roads, and more importantly, foreign object debris on the flightline. FOD is harmful to both personnel and aircraft alike since it can be sucked into an aircraft's engine or blown about and potentially cause injuries. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Kyle Pullum, 2nd Civil Engineer Squadron Heavy Repair section, removes a rock from his street sweeper's tire during a foreign object debris check on Barksdale Air Force Base, La., April 25, 2013. Street sweepers are not limited to just the roads of Barksdale; they are also used on the flightline to sweep for loose rocks and other objects and serve as a means of preventative maintenance. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Kyle Pullum, 2nd Civil Engineer Squadron Heavy Repair section, cleans a street sweeper on Barksdale Air Force Base, La., April 25, 2013. Heavy Repair Airmen, also known as "Dirt Boys", lay down pavement, operate heavy equipment and maintain the roads and flightline in order to support Barksdale?s mission of delivering precision munitions to the battlefield. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Kyle Pullum, 2nd Civil Engineer Squadron Heavy Repair section, cleans a street sweeper on Barksdale Air Force Base, La., April 25, 2013. Heavy Repair Airmen perform street sweeper duties in one-week shifts, cleaning streets and the flightline as needed depending on the conditions of the road. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Kyle Pullum, 2nd Civil Engineer Squadron Heavy Repair section, adjusts settings on a street sweeper on Barksdale Air Force Base, La., April 25, 2013. Heavy Repair Airmen, also known as "Dirt Boys", lay down pavement, operate heavy equipment and maintain the roads and flightline in order to support Barksdale?s mission of delivering precision munitions to the battlefield. (U.S. Air Force photo/Airman 1st Class Andrew Moua)