Master Sgt. Heppler Retires
U.S. Air Force Master Sgt. Nancy Heppler, 20th Maintenance Group programs flight chief, receives her certificate of retirement from Lt. Col. Carolyn Forner, 20th MXG deputy commander, at Shaw Air Force Base, S.C., June 28, 2013. Heppler served in the Air Force for more than 24 years. (U.S. Air Force photo by Airman 1st Class Nicole Sikorski/Released)