As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR STRUCTURE WEB LOCATED BETWEEN FRAME 69 AND FRAME 70 AND STR 23L IN PASSENGER CABIN. REPLACED FLOOR STRUCTURE WEB LOCATED BETWEEN FRAME 69 AND FRAME 70 AND STR 23L IN PASSENGER CABIN IAW SRM 51-72-11 AND DWG D53474180.