As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEFECT NR00255: FWD COMPARTMENT SIDEWALL SUPPORT AT BS500D FROM S20R TO S26R HAS CORROSION. - - - RESOLUTION: REMOVED AND REPLACED SIDEWALL SUPPORT AT ST 500D FROM S-20R TO S-26R IAW B737-800 SRM 51-40-02-0G AND DWG 143A9405 REV A. CAUSE OF CORROSION: MOISTURE.