U.S. Air Force Airman 1st Class Matthew Mendez, 633rd Logistics Readiness Squadron fuels distribution operator, performs a routine check on the mobile refueling unit at Langley Air Force Base, Va., Oct. 28, 2013. Mendez showcased his attention to detail during an inspection when he noticed a discrepancy on the placement of a fire extinguisher while on the flight line, which could have caused a potential hindrance for the retardant to reach the aircraft in the event of a fuel fire. (U.S. Air Force photo by Senior Airman Brittany Paerschke-O’Brien/Released)