As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, THE CENTER FUSELAGE I FLOOR STRUCTURE MIDDLE BEAM WAS FOUND TO BE CORRODED. THE CENTER FUSELAGE I FLOOR STRUCTURE MIDDLE BEAM WAS REPLACED WITH A NEW PART AND INSTALLED WITH A SOLID RIVET IN ACCORDANCE WITH SRM 51-40-02.