Master Sgt. Joseph King (left), superintendent of maintenance operations at the Air Force Technical Applications Center's Central Repair Facility, explains to 16th Air Force (Air Forces Cyber) Commander Lt. Gen. Timothy Haugh and 16th AF Command Chief Master Sgt. Summer Leifer how the CRF maintains its seismic equipment to execute AFTAC's global nuclear treaty monitoring mission. The 16th AF leaders visited Patrick AFB, Fla., Dec. 16, 2019. (U.S. Air Force photo by Susan A. Romano)