What was found
CORROSION ON AFT BULKHEAD TO SIDEWALL SUPPORT ANGLE AT FWD CARGO BAY BS500D RBL25. MARKED.<[01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT RBL 25 REMAINING THICKNESS LESS THAN 0.056' IN AN AREA OF 1X1 FOUND TO BE OUT OF LIMITS PER SRM 53-30-08-1A-1 USING ATS TOOL ID ATS2678 EXP 4/2023;[02] VERIFIED CORRECTIVE ACTION 1.;[03] LOCATED AND DRILLED NEW R/H AFT BULKHEAD SUPPORT ANGLE BS 500D PER SRM 51-40-05-0G-0 AND DWG 143A7902;[04] VERIFIED CORRECTIVE ACTION STEP 3. VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.