What was found
AFT CARGO BAY SUB THRESHOLD WEB HAS MULTIPLE AREAS OF CORROSION AROUND NUT PLATE HOLES BS794 TO BS847 RBL26 WL156 / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 807+10 RBL 26 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.045 IN NUMEROUS 1'X1' AREAS; FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1 USING DIAL DEPTH GAUGE ATS 2678 DUE 04/2023;[02] VERIFIED CORRECTIVE ACTIONS STEP 1; AND MEASUREMENTS TABLE.;[03] REMOVED ACB SUB THRESHOLD WEB BS 794 TO BS 847; RBL 19 TO RBL 28; WL 156 IAW SRM 51-40-02-0G-0.;[04] LOCATED; DRILLED; DEBURRED; COUNTERSUNK; AND INSTALLED NUT PLATES ON ACB SUB THRESHOLD WEB BS 794 TO BS 847; RBL 19 TO RBL 28; WL 156 IAW SRM 51-40-05-0G-0; DWG# 146A8120; DWG# 146A8340. OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION 4.<BR>OK TO INSTALL;[06] INSTALLED ACB SUB THRESHOLD WEB BS 794 TO BS 847; RBL 19 TO RBL 28; WL 156 IAW SRM 51-40-02-0G-0; DWG# 146A8120; DWG# 146A8340;[07] VERIFIED CORRECTIVE ACTION #6 AND MEASUREMENT FIELD;[08] CARD COMPLETE