What was found
DOT# A45-014; AFT CARGO PIT DOOR CUTOUT; INTERCOSTAL LOWER ATTACH STRAP HAS CORROSION; WL: 156; RBL: 19; STA: 787+12. ; / [01] REMOVED STRAP FROM STATION 787+12 TO REMOVE CORROSION IAW B737 SRM 51-40-02; [02] REMOVED CORROSION ON STRAP AT STATION 787+12 ORIGINAL MATERIAL THICKNESS .040 VERIFIED BY UT 36649 DUE 8-4-21 MATERIAL REMOVED .009 MATERIAL REMAINING .031 STRAP WAS FOUND TO BE OUT OF LIMITS IAW B737 SRM 53-60-15-1A-1 TOOL 36649 DUE 8-4-21; [03] VERIFIED ITEMS 1 AND 2; [04] VERIFIED MEASUREMENT CHANGED FOR PRIMARY STRUCTURE AND CORROSION LEVEL; [05] PART VERIFIED AS P/N 146A8128-18 IAW BOEING DWG 146A8340 REV- ATAG A48323. LOCATED AND DRILLED IAW B737 SRM 51-40-05-0G-0; [06] INSPECTION COMPLETED CARD STEP 5.<BR>OK TO INSTALL STRAP.; [07] INSTALLED NEW STRAP IAW B737 SRM 51-40-02-0G-0 AND DWG 146A8340 REV-; [08] REMOVED AND REPLACED INTERCOSTAL LOWER ATTACH STRAP IN AFT CARGO COMPARTMENT BS 787+12' IAW B737 SRM 51-40-02-0G-0 AND DWG 146A8340 REV-; [09] INSPECTED INSTALLATION; [10] AUDIT. CW