Sheppard in Photos
Airman 1st Class Kayla Harper, 362nd Training Squadron student, installs a halon reservoir on an F-16 at Sheppard Air Force Base, Texas, Dec. 1, 2017. Harper is in block seven of nine in the F-16 crew chief apprentice course and is scheduled to graduate Jan. 16. (U.S. Air Force photo by Alan R. Quevy)