As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN BS 690-700 RBL 64 FLOOR SUPPORT CORRODED. REMOVED CORROSION IAW SRM 51-10-02. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED THE FLOOR SUPPORT IAW SRM 51-40-02, DWG 143N5400 REV B, SRM 51-20-01 & AMM 51-21-00-377-001.