As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE FOUND CORROSION ON FWD FUSELAGE FLOOR STRUCTURE RH IB SEAT TRACK BEAM BETWEEN FR14 AND FR17. FWD FUSELAGE FLOOR STRUCTURE RH IB SEAT TRACK BEAM REPLACED IAW SRM 51-41-00, 51-41-01 AND 51-41-02. A/C REMAINS IN CHECK.