What was found
DURING AN MBV INSPECTION, THE LEFT OMEGA BEAM AT FRAME 20 WAS FOND TO BE CORRODED BEYOND SRM LIMITS. REMOVED CORROSION BY MAKING A CUTOUT. FABRICATED A DOUBLER FILTER, PLATE AND TWO SHIMS. REPAIR DONE IAW EMB SRM, SRM 145/1142 REV 26, 53-21-10. (M)