Fueling Aviano’s mission Published March 11, 2015 By Airman 1st Class Deana Heitzman 31st Fighter Wing Public Affairs AVIANO AIR BASE, Italy -- U.S. Air Force Senior Airman Andrew Moody, 31st Maintenance Squadron aircraft fuels system journeyman, repairs an F-16 Fighting Falcon F1 fuel tank bladder leak, Feb. 11, 2015, at Aviano Air Base, Italy. The F1 tank holds more than 1,000 pounds of jet fuel. The bladder serves as a barrier between the pilot and fuel to prevent potential leaks that may affect the pilot and damage the aircrafts electrical system. (U.S. Air Force photo by Airman 1st Class Deana Heitzman)