As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR BEAM AT STA 986 RBL 43 R LBL43 CORRODED ON UPPER SURFACE IN MULTIPLE AREAS REMOVED OLD REPAIR FLOOR BEAM AT STA986 IAW B737-800 AND LOCATED AND DRILLED NEW T-CHORD ANGLES AND STRAPS IAW B737-800 SRM 53-70-51-2R-4 SRM 51-40-05. INSTALLED NEW PARTS T-CHORD, ANGLES AND STRAPS AT STA986 IAW B737-800 SRM 51-40-02 SRM 53-70-51-2R-4 REPAIR 4.