As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PASSENGER COMPARTMENT FLOOR WET AREA INTERCOSTAL FRAME FOUND WITH CORROSION AT BS 958, RBL 47 INTERCOSTAL. REMOVED AND REPLACED IAW B737-800 SRM 51-10-02 HOLES PICKED-UP PER SRM 51-40-05 AND FASTENERS INSTALLED PER SRM 51-40-02 REV.35.