As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN LEFT AFT WET AREA BEAM UPPER FLANGE AS CORROSION AROUND HOLE AT BS986.5. PEFORMED PERMANENT REPAIR AT MAIN CABIN AFT WET AREA FLOOR BEAM STA 986.5 LBL43 IAW B737-900ER SRM 53-70-51-2R-6 ALTERNATIVE 4 . CAT A REPAIR, NO FURTHER INSPECTION REQUIRED.