As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SURFACE CORROSION ON THE CABIN FLOOR SUPPORT UPPER SURFACE BETWEEN BS 1640 - 1661, RBL 57. REMOVED THE CORROSION IAW SRM 51-10-02 AND FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED THE FLOOR SUPPORT IAW DWG 146N5230, AND SRM 51-40-02.