As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A C-CHECK, THE PRESSURE FLOOR BETWEEN FS 449.85-473.15, BL45 TO THE FLOOR UNDER THE LT AND RT OVERWING EXITS WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE IS REPAIRING THE PRESSURE FLOOR BETWEEN FS 449.85-473.15, BL45 TO THE FLOOR UNDER THE LT AND RT OVERWING EXITS IAW EO. (K)