What was found
MAIN CABIN FLOOR STRUCTURE AT C16, Y254, UPPER SURFACE OF TRACK FLANGE HAS CORROSION GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS. ORIGINAL THICKNESS IS .063, REMAINING IS .019, .044 WAS REMOVED. FOUND TO BE OUT OF LIMITS REF A320 SRM 53-11-14-283-004. REPAIRED TRACK REF A320 SRM 53-11-14-300-003 (REF RRFTS #11 P5 DISPOSITION). CAT "A" MAJOR REPAIR TRACKING EA A320-53EA-00343 REV "OO"