Airman 1st Class Luis Matamoros, right, 931st Civil Engineer Squadron operations water and fuels system journeyman, and Senior Airman Joey Baughn, 22nd CES operations water and fuels system journeyman, remove a blind flange on a Jet-A fuel line, March 19, 2015, at McConnell Air Force Base, Kan. Members of the 931st CES and 22nd CES regularly work together on preventative and reactive maintenance to keep the base infrastructure in top shape. (U.S. Air Force photo by Senior Airman Victor J. Caputo)