As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING M-CHECK, FOUND CABIN FLOOR PANEL NR 20 HAS 1EA CRACK AT FASTENER HOLE. CRACKED BEYOND REPAIRABLE LIMITS. RECEIVED PANEL, LOCATED AND DRILLED IAW SRM 51-10-4. TREATED AND PRIMED IAW SRM 51-10-3, AND INSTALLED NUTPLATES IAW SRM 51-30-2.