As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN FLOORBEAM STA 1640 RBL 6 TO LBL 6 HAS HEAVY CORROSION. CORRODED AREA WAS FOUND TO BE BEYOND ALLOWABLE LIMITS. REMOVED DAMAGED AREA ON FLOORBEAM, FABRICATED AND INSTALLED REPAIR SECTION OF UPPER CHORD AND ALL REQUIRED ATTACH PARTS PER SRM 53-00-51 REPAIR 3.