What was found
MULTIPLES AREA OF CORROSION ON AFT CARGO BAY THRESHOLD AT BS 787+8-847 RBL 27.5.<[01] VERIFY APPLICABILITY OF SRM 53-60-15-1A-1<BR><BR>MEASURMENT UPDATE;[02] FIXED REMAINING THICKNES FROM 0.035 TO 0.033;[03] REMOVED CORROSION FROM AFT CARGO THRESHOLD WEB BS787+8 TO BS847 DEEPEST AREA AT BS807+2 MEASURED 16.3'L X 1'W AND 0.017'DEEP; ORIGINAL THICKNESS OF 0.050' FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1<BR><BR>CAL ID DIAL DEPTH GAUGE <BR>ATS2678<BR>DUE 02/29/24;[04] VERIFIED CORRECTIVE ACTIONS STEPS 1;2;3.;[05] LOCATED AND DRILLED NEW ACB THRESHOLD WEB P/N 146A8123-25; LOT. 1522932-1; IAW SRM 51-40-05-0G-0 AND DWG. 146A8340.<BR>INSTALLED NUT PLATES IAW SRM 51-40-02-0G-0.;[06] COUNTERSINKED SUB THRESHOLD IAW DWG 146A8340 ID 026 REV-; SRM 51-40-08.;[07] VERIFIED CORRECTIVE ACTIONS STEPS 5;6 AND MEASUREMENTS TABLE.