What was found
STRUT NR 1 INBD WING FITTING HAS A SHIM MIGRATION ON OTBD SIDE ABOUT .5". COMPLIED WITH EA F-5740-131555 WINGS LT INBD SIDE LOAD FITTING EXPOSED SHIM PART 1. TRACKING IS REQUIRED IAW PART 2, AND PART 3 OF EA. A/C FLIGHT CYCLES (21,726), AND FLIGHT HOURS (52,338), AT TIME OF PART 1 ACCOMPLISHED. MAJOR REPAIR.