U.S. Air Force Lt. Col. David Easterling Jr., 43rd Flying Training Squadron instructor pilot, celebrates with family after completing 4,000 flight hours in the T-38 Talon on September 23, 2020, at Columbus Air Force Base, Miss. As the T-38 fleet has aged since 1959, specific airframe, engine and system components have been modified or replaced. (U.S. Air Force photo by Airman 1st Class Davis Donaldson)