What was found
CORROSION AFT CARGO BAY SUB THRESHOLD WEB MULTIPLE AREAS AROUND NUT PLATE HOLES BS794 TO BS847 RBL 26 WL156<[01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 800 REMOVED 0.015' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.045' FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1 USING ATS TOOL ID ATS 2473 DUE 08/2023;[02] VERIFIED CORRECTIVE ACTION 1.;[03] REMOVED SUBTHRESHOLD WEB BS 794 TO BS 847 RBL 26 WL 156 PER SRM 51-40-02-0G-0.;[04] LOCATED; DRILLED; DEBURRED; INSTALLED NUT PLATES ON NEW SUBTHRESHOLD WEB BS 794-847 RBL 26 WL 156 PER SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 146A8340.;[05] OK TO INSTALL NEW SUBTHRESHOLD WEB.;[06] OK TO INSTALL NEW SUB THRESHOLD WEB GIVEN;[07] MEASUREMENT TABLE VERIFIED;[08] INSTALLED SUBTHRESHOLD WEB BS 794- 847 RBL 26 WL 156 PER SRM 51-40-02-0G-0; DWG 146A8340.;[09] VERIFIED CORRECTIVE ACTION #8