What was found
FLOOR LT SHEAR WEB UPPER SURFACE CORRODED AT 2 PLACES AND AT FOUR BOLTS AROUND PLUGGED DUCT BETWEEN FR 11 AND FR 12. AFTER LEVEL 1 CORROSION REMOVAL ON WEB FOUND TO BE OUT OF MFG DWG TOLERANCE. MFG NEW WEB AND REPLACED IAW SRM 51-40-20, PAR 6, PAR 7 AND SRM 51-72-10, P1. REPLACED FOUR CORRODED BOLTS IAW SRM 51-40-21.