As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CORROSION ON MAIN CABIN FLOORBEAM UPPER CAP FWD EDGE OF FASTENER HOLE AT BS 740 LBL 4. FABRICATED AND INSTALLED REPAIR SECTION 12 FROM BAC1505-100617, REINFORCEMENT STRAPS 1 14-1/2 BY 7/8 FROM 7075-T6 .063 AND 1 14-1/2 BY 7/8 FROM 7075-T6 .090 AND RADIUS FILLER 15 IN LENGTH FROM 7075-T6 .125 IAW B757 SRM 53-00-51D, 51-40-02 AND 51-20-01.