As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DAMAGE REMOVAL OF MAIN CABIN DECK PLATE, FOUND STA 1680 FLOORBEAM CORRODED IN NUMEROUS LOCATION. BLENDED CORROSION IAW 757 SRM 51-10-02. CORROSION FOUND OUT OF LIMITS. REPLACEMENT FLOORBEAM CAP INSTALLED IAW SRM 51-40-02 AND ERA 470312-14.