The F-16 'Falcons' from Luke AFB began carrying tail codes "LF" with the 310th TFTS officially began training fighter pilots February 2, 1983 in the F-16A.
312th Tactical Fighter Training Squadron, activated October 1984, the first F-16C squadron in the Air Force;
314th Tactical Fighter Training Squadron, activated October 1986, the second F-16C squadron in the Air Force. [Wiki]