As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING M-CHECK, FOUND MAIN PASSENGER CABIN FLOOR PANEL NR70 HAS CORROSION ON TOP OF PANEL AROUND FASTENER HOLES. BLENDED CORROSION AROUND FASTNER HOLES ON CABIN FLOOR PANEL NR70 ORIG MAT .025. REMOVED .008, REMAINING .017 DETERMINED TO BE OUT OF LIMITS IAW SRM 53-01, FIG 1 RECEIVED NEW FLOOR PANEL PART NR09-5300-3-2991. LOCATED & DRILLED FASTNER HOLES ON FLOOR PANEL IAW SRM 51-10-4.