As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DECK CABIN SEAT TRACK AT BS 460 & LBL 68 FOUND CORROSION AS MARKED. ENTERED AND DEFERRED FOR SDR REPORTING. CORRODED SEAT TRACK AT CABIN BS460 LBL 68 AREA REMOVED AS PER B747-400 SRM 51-40-02. NEW SEAT TRACK FABRICATED AS PER BOEING 140U5286 REV A. NEW SEAT TRACK AT CABIN BS460 LBL 68 AREA INSTALLED AS PER B747-400 SRM 51-40-02.