U.S. Air Force Staff Sgt. Amanda Dennis, F-35 Field Training Detachment egress instructor, explains an F-35 ejection seat maintenance trainer to Chief Master Sgt. David Brown, 19th AF command chief, Oct. 3, 2017, at Eglin Air Force Base, Fla. During Brown's visit at the 33rd Fighter Wing, Brown experienced the one-of-a-kind training facility where F-35 maintainers hone their craft by using state of the art equipment. (U.S. Air Force photo by Staff Sgt. Peter Thompson)