As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***WHILE A/C WAS OUT OF SERVICE FOR HEAVY MAINTENANCE CHECK*** CF III AFT WET AREA FLOOR STRUCTURE FR84RH OB WEB AT CROSSBEAM, UPPER SURFACE FOUND CORRODED. CF III AFT WET AREA FLOOR STRUCTURE FR84RH OB PNL SUPPORT REPLACED IAW SRM 51-41-01, 51-41-02 & 51-43-04. A/C REMAINS OUT OF SERVICE FOR HEAVY CHECK COMPLETION.