Airman 1st Class Viktoria Tooker, 311th Aircraft Maintenance Unit crew chief, writes in the maintenance log book June 4, 2019, on Marine Corps Air Station Miramar, Calif. Between the 314th Fighter Squadron and the 314th AMU, 168 personnel, 16 F-16 Vipers and 14 tons of equipment were fully functional during the temporary duty assignment in support of 258 flying training sorties. (U.S. Air Force photo by Staff Sgt. Christine Groening)