What was found
FLOOR STRUCTURE INTERCOSTAL LOCATED BETWEEN STAS 947-967; LBL 25 HAS CORROSION ON FWD/LH EDGE<[01] REMOVED FLOOR SUPPORT INTERCOSTAL LOCATED BETWEEN STA?S 947-967; LBL 51 PER SRM 51-40-02;[02] REMOVED CORROSION ON FLOOR SUPPORT INTERCOSTAL LOCATED BETWEEN STA?S 947-967; LBL 25. ORIGINAL THICKNESS OF 0.210; MATERIAL REMOVED .048; REMAINING THICKNESS IS 0.162. INTERCOSTAL FOUND TO BE OUT OF LIMITED PER SRM 53-70-51-1A-1.;[03] LOCATED AND DRILLED FASTENER HOLES ON NEW INTERCOSTAL PER SRM<BR>51-40-05. EXCEPT FASTENER HOLE ATTACHING TO FLOOR STRUCTURAL 947 AND LAV MOUNT.;[04] REMOVED AND REPLACED INTERCOSTAL PER SRM 51-40-02. REFERENCE TASK (TTG8Q00U9UHV);[05] INSPECTED AS REQUIRED. CORRECTIVE ACTION #3; #4