As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A C-CHECK, THE LT FLOOR ATTACH WEB AT FS 559.80 TO FS 574 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED THE CORROSION ON THE LT FLOOR ATTACH WEB AT FS 559.80 TO FS 574 BY COMPLYING WITH EO. (K)