As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C2 CABIN, FLOOR PNL F27 HAS CORROSION BOTH SIDES AND POPPED RIVETS IN U CHANNEL. REMOVED TOP SKIN OF FLOOR PNL F27 IAW SRM 53-20-00 FIG 1F. FABRICATED AND INSTALLED REPAIR SKIN AND HAT CHANNELS ON FLOOR PANEL F27 IAW DWG 9758942, AND SRM 51-3-2.