As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON MAIN CABIN FLOOR STRUCTURE, LT CREASE BEAM INBD CHORD BETWEEN BS 755 AND BS 860. REMOVED 12 EA AREAS WITH CORROSION ON LT CREASE BEAM INBD CHORD BETWEEN BS 755 & BS 860. FOUND OUT OF LIMITS. REPLACED LT CREASE BEAM INBD CHORD SECTION BETWEEN BS 754 TO BS 900 IAW SRM.