What was found
ABI - DURING INSPECTION OF AIRCRAFT, THE LEFT OMEGA BEAM WAS FOUND TO BE CORRODED AT FRAME 20. REMOVED THE CORROSION BY MAKING A CUTOUT. FABRICATED AN EXTERNAL DOUBLER, FILLER, THREE SHIMS AND PLATE. REPAIR DONE IAW EMB SRM, SRM EMB-145/1142 REV 28, CHAPTER 53-21-10. (M)