Fuel is the blood of an aircraft
U.S. Air Force Staff Sgt. Rodney Hunter signals confirmation of operational lights on an R-11 refueling truck to Staff Sgt. Dorell Pettus on Seymour Johnson Air Force Base, N.C., April 25, 2012. Preventive maintenance personnel must check lights, engine and fuel levels daily to ensure service is not needed. Hunter, 4th Logistics Readiness Squadron refueling maintenance supervisor, hails from Enfield, N.C. Pettus, 4th LRS fuels refueling maintenance supervisor, is from Charlotte, N.C. (U.S. Air Force photo/Airman 1st Class John Nieves Camacho/Released)