U.S. Air Force Staff Sgt. James Harris, left, 100th Maintenance Squadron hydraulics technician from Abilene, Texas, and U.S. Air Force Senior Airman Robert Summerville, 100th MXS hydraulics technician from New Castle, Penn., review KC-135 Stratotanker aircraft forms Aug. 11, 2015, on RAF Mildenhall, England. Both Airmen were reviewing the forms to ensure the aircraft was safe for maintenance. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Airmen from the 100th Maintenance Squadron survey a potential hydraulic leak on a KC-135 Stratotanker Aug. 11, 2015 on RAF Mildenhall, England. The Airmen were trying to determine the source and severity of the leak. The hydraulics backshop Airmen work closely alongside flight line maintenance Airmen to ensure aircraft are mission ready. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Senior Airman Robert Summerville, 100th Maintenance Squardon hydraulics technician from New Castle, Penn., removes corrosion and sealant from a KC-135 Stratotanker boom nozzle Aug. 11, 2015, on RAF Mildenhall, England. Summerville was doing this as part of a required inspection. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Staff Sgt. Albert Salangsang, left, 100th Maintenance Squadron hydraulics technician from Dallas, and U.S. Air Force Senior Airman Robert Summerville, 100th MXS hydraulics technician from Newcastle, Penn., inspect a KC-135 Stratotanker boom nozzle for defects and damage Aug. 11, 2015, on RAF Mildenhall. The Airmen were doing this as part of a required inspection to ensure the aircraft stays mission ready. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Senior Airman Robert Summerville, left, 100th Maintenance Squadron hydraulics technician from New Castle, Penn., and U.S. Air Force Staff Sgt. Albert Salangsang, 100th MXS hydraulics technician from Dallas, verify they have the proper equipment and chemicals for an inspection on a KC-135 Stratotanker Aug. 11, 2015, on RAF Mildenhall, England. Airmen were doing this as part of a required inspection to ensure the aircraft stays mission ready. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Staff Sgt. James Harris, 100th Maintenance Squadron hydraulics technician from Abilene, Texas, prepares to service surge boots within a KC-135 Stratotanker boom Aug. 11, 2015, on RAF Mildenhall, England. Surge boots are rubber-like sleeves that run the length of the fuel tube, used as a way to prevent damage during fuel surges when the boom disconnects from the aircraft it is refueling. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Senior Airman Robert Summerville, 100th Maintenance Squadron hydraulics technician from New Castle, Penn., services KC-135 Stratotanker surge boots as part of a required inspection, Aug. 11, 2015, on RAF Mildenhall, England. Surge boots are rubber-like sleeves that run the length of the fuel tube, used as a way to prevent damage during fuel surges when the boom disconnects from the aircraft it is refueling. (U.S. Air Force photo by Senior Airman Christine Halan/Released)

U.S. Air Force Staff Sgt. James Harris, 100th Maintenance Squadron hydraulics technician from Abilene, Texas, monitors and controls the travel of a KC-135 Stratotanker boom, Aug. 11, 2015, on RAF Mildenhall, England. Harris was lowering the boom in preparation for an inspection. (U.S. Air Force photo by Senior Airman Christine Halan/Released)