As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 1340, FLOORBEAM UPPER SURFACE HAS CORROSION AT FASTENER HOLES BL 0 TO LBL 25. REMOVED DAMAGED FLOORBEAM FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51. INSTALLED NEW FLOORBEAM IAW SRM 53-60-51, SRM 51-40-02 AND DWG 146N5008. MAJOR REPAIR.