The Air Force will use reservists to fill a need for skilled maintainers as it brings the F-35A online, the head of Air Force Reserve Command (AFRC) said Tuesday.Lt. Gen. James Jackson said Air Force manpower, particularly in active duty and reserve maintenance, will be used to fill requirements at Hill, Luke and Nellis Air Force bases. Air Force spokesman Col. Robert Palmer said Tuesday the service didn’t know how many reservists would be used as F-35 maintainers and that…