As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDCC FLOORBEAM HAS CORROSION ON UPPER SURFACE AT FR 14 6IN. BETWEEN SEAT TRACK 3L AND 4L. REMOVED LEVEL 1 CORROSION. DURING CORROSION REMOVAL FOUND CROSSBEAM SECTION OUT OF LIMITS IAW SRM 51-74-10 AND SRM 53-10-15. REMOVED AND REPLACED FLOORBEAM IAW SRM 51-40-21.