As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING 8-DAY CHECK, CORROSION WAS FOUND ON FLOORBEAM -Y50 BETWEEN FS 66 AND FS 68. MAINTENANCE REMOVED CORRODED FLOORBEAM -Y50 FROM FS 66 TO FS 68; FABRICATED A NEW REPLACEMENT FLOORBEAM, INSTALLED REPAIR PART IAW A320 SRM 51-72-11.