What was found
CORROSION ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS887 - BS947 RBL21 WL171. ; / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 927 REMOVED 0.015' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.040' FOUND TO BE OUT OF LIMITS PER SRM 53-30-15-1A-2 USING ATS TOOL ID ATS1225 S/N UNKNOWN; [02] VERIFIED CORRECTIVE ACTION STEP 1.; [03] LOCATED AND DRILLED NEW R/H FLOOR TO SIDEWALL SUPPORT BS 887 TO 947 RBL21 WL171 PER SRM 51-40-05-0G-0 AND DWG 146A7500; [04] VERIFIED CORRECTIVE ACTION 3.