As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOORBEAM UPPER TEE FOUND CORRODED AT UPPER AND LOWER SURFACES BS 377.7, BL 0-LBL 20. REMOVED AND REPLACED FLOORBEAM FABRICATED IAW DWG 141N5123 SHT 1 REV A AND INSTALLED IAW DWG 141N5113 SHT 1 REV F AND SRM 51-40-02 REV 109. REPAIR IS MAJOR.