As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAL - MAJOR REPAIR - DURING BC-4 CHECK CORROSION WAS FOUND ON FLOORBEAM Y520 AT FR 16. MAINTENANCE REMOVED CORRODED SECTION OF FLOORBEAM Y520 FROM FR 12 TO FR 16; FABRICATED A NEW REPLACEMENT SECTION OF BEAM PER DWG D53112825; INSTALLED REPAIR PART IAW A320 SRM 51-42-11.