What was found
AFT CARGO BAY DOOR CUTOUT AFT SHIELD IS CORRODED FROM STA 847 TO STA 867; RBL 23; WL 163. / [01] REMOVED AND EVALUATED SHIELD ON AFT CARGO BAY AT RBL 23 BTW BS 847- BS 867; NO FOUND ALLOWABLE DAMAGE LIMITS; DUE NOT LIMITS IN SRM PART WILL BE REPAIRABLE BY REPLACEMENT. IAW. SRM 51-40-02-0G-0; SRM 51-10-02-0G-0; STEP 9.;[02] VERIFIED CORRECTIVE ACTION 1;[03] RECEIVED SHIELD NEW AFT CARGO BAY DOOR CUTOUT STA 847 TO STA 867 RBL 23 WL 163 ITEM 146A8127Y10 PO #845161. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 146A0081;[04] VERIFIED CORRECTIVE ACTION 3;[05] OK TO INSTALL;[06] OK TO INSTALL;[07] INSTALLED NEW SHIELD ON AFT CARGO BAY AT RBL 23 BTW BS 847- BS 867 ITEM#146A8127Y10 PER SRM 51-40-02-0G-0; DWG 143A0081.