What was found
CORROSION ON AFT SHIELD AT AFT CARGO BAY BS493 - BS500 RBL24. DAMAGE FOUND TO BE AT FWD CARGO BAY. / [01] PRIOR TO REMOVAL; FOUND PART TO HAVE NO SRM LIMITS AND SO PART IS REPAIRABLE BNY REPLACEMENT IAW SRM 51-10-02-0G-0 STEP;[02] VERIFIED APLICABILITY SRM 53-30-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE;[03] ENTRY AN ERROR AT CORRECTIVE ACTIONS 2:<BR>VERIFIED APPLICABILITY SRM 53-30-15-01-1 FOR IDENTIFICATION AND SRM 51-10-02-0G-0 STEP 9 FOR REPLACEMENT OF PART;[04] LOCATED AND DRILLED NEW AFT. SHIELD P/N= 143A8126Y36; AT FCB AS PER SRM 51-40-05 AND DWG. 143A8126<BR><BR>INSTALLATION WILL BE ACCOMPLISHED ON FAULT # TTG8Q004D40T;[05] VERIFIED CORRECTIVE ACTION 3 AND 4 AS WELL AS THE MEASUREMENT TABLE.