MOODY AIR FORCE BASE, Ga. -- Tech. Sgt. Waltress James, 23rd Maintenance Group Air Force Repair Enhancement Program technician, holds a caution annunciator test set here Aug. 26. He built the test set from scratch over the course of three months. The set is used in A-10C Thunderbolt II aircraft and gives pilots a visual display of indicators, including engine temperature and navigational mode. (U.S. Air Force photo by Airman 1st Class Brigitte Brantley)