As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOORBEAM UPPER TEE CORRODED AT BS 347 AND RBL 87. MAJOR REPAIR ACCOMPLISHED: REMOVED CORROSION FROM TEE, AND VERIFIED MATERIAL REMAINING EXCEEDS 10% MAX ALLOWABLE LIMIT. REMOVED DAMAGED SECTION OF TEE, AND FABRICATED AND INSTALLED NEW TEE REPAIR ANGLES AND STIFFENER.