As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-09 CHECK CORROSION WAS FOUND ON L/H CABIN FLOOR SUPPORT UNDER CUSP PANEL BS 1640 TO 1661. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED FLOOR SUPPORT FROM BS 1640 TO 1661; FABRICATED A NEW REPLACEMENT FLOOR SUPPORT; INSTALLED REPAIR PART IAW B 757-200 SRM 51-40-02, PG. 7.