Fire fighting equipment maintenance
Staff Sgt. Frank Moore, 2nd Civil Engineer Squadron firefighter, places a flightline fire extinguisher on a weighing machine on Barksdale Air Force Base, La., June 19, 2013. When fully serviced, flightline fire extinguishers must be within five pounds of 310 pounds. (U.S. Air Force photo/Airman 1st Class Benjamin Gonsier)