As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN METAL SKIN FLOOR PANEL NR31 HAS CORROSION AROUND FASTENER HOLES. REMOVED CORROSION FROM MAIN CABIN FLOOR PANEL NR31 ORIGINAL THICKNESS .020, REMOVED .007 WITH .013. REMAINING FOUND TO BE OUT OF LIMITS IAW SRM 53-01, FIG 1. RECEIVED CUST FURNISHED FLOOR PANEL PN 09-5300-3-1731.