As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR STATION 1314 UPPER FLOOR SUPPORT FRAME HAS CORROSION. REMOVED CORROSION BY BLEND METHOD & REMAINING MATERIAL THICKNESS FOUND OUT OF LIMITS IAW B757-200 SRM 53-60-13 FIG 101. R & R PART IAW B757-200 SRM 51-40-05 PG 13 & SRM 51-40-02.