What was found
CORROSION ON AFT CARGO BAY THRESHOLD AT RBL24 BS787+11; RBL27 BS787+18; RBL27 BS807+1; RBL27 BS807+4; RBL27 BS807+7; RBL27 BS807+16; RBL27 BS827+2; RBL27 BS827+4; RBL27 BS827+9; RBL21 BS827+18. / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 787 RBL 24 REMOVED .016' IN AREA OF 1'X 1' ORIGINAL THICKNESS .045' FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1 USING ATS TOOL ID: ATS2678 EXP 04/2023;[02] VERIFIED CORRECTIVE ACTION ITEM 1. AREA OF DAMAGE REMOVED EXCEEDS LIMITATION PER SRM 53-60-15-1A-1.;[03] REMOVED SUB-THRESHOLD WEB AT BS 792-847 PER SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED NEW SUB-THRESHOLD WEB BS 792-847 PER SRM 51-40-05-0G-0 AND DWG 146A8340. OK TO INSTALL SUB-THRESHOLD;[05] VERIFIED CORRECTIVE ACTION ITEM 4. OKAY TO INSTALL SUBTHRESHOLD GIVEN.;[06] INSTALLED SUB-THRESHOLD WEB BS 792-847 PER SRM 51-40-02-0G-0 AND DWG 146A8340;[07] VERIFIED CORRECTIVE ACTION ITEM 6.;[08] ALL WORK COMPLETE.;[09] VERIFIED MEASUREMENT TABLE;[10] VERIFIED TASK COMPLETE