As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR SUPPORT BEAM STATION 345, BETWEEN LBL 11 - 18, EVIDENCE OF CORROSION. REMOVED CORROSION AT FLOORBEAM FOUND OUT OF LIMITS IAW SRM 51-10-02, 53-00-01, CUT UPPER T CAP FROM LBL 52" & RBL 11". INSTALLED FLOORBEAM UPPER CHORD REPAIR IAW SRM 53-00-51 FIG 201.