What was found
A221 DOT 04 FWD CARGO BAY AT STA 520 AND BETWEEN STR 25L AND 25R LOWER L BRACKET SUPPORT STRUCTURE FOR CENTER BULKHEAD PNL HAS SEVERAL AREAS OF CORROSION AS MARKED<[01] FOUND TO BE OUT OF LIMITS. NO PUBLISHED LIMITS IN SRM;[02] REMOVED ANGLE IAW SRM 51-40-02;[03] VERIFIED STEPS 1;2;[04] REPLACEMENT ANGLE VERIFIED TO BE PN 143A9485Y35 A TAG WN12803 TO BE CORRECT PART IAW BOEING DWG NUMBER 143A9481 REV A;[05] VERIFIED ITEM 4;[06] LOCATED AND DRILLED IAW SRM 51-40-05 AND IAW BOEING DWG NUMBER 143A9481 REV A;[07] VERIFIED ITEM 6;[08] OK TO INSTALL;[09] INSTALLED PN 143A9485Y35 IAW SRM 51-40-02-0G-0 AND IAW BOEING DWG # 143A9481 REV A;[10] VERIFIED ITEM 9;[11] OK TO CIC ITEM 9;[12] APPLIED CIC IAW AMM TASK 51-21-91-620-802 APPLICATION TIME 11:30 AM ON 06-JUL-2023;[13] VERIFIED ITEM 12;[14] AUDIT C/W.