As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C4 CHECK DISCOVERED CORROSION ON Y765 BEAM AND FS 68. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-00-04 FIG 102. MAINTENANCE REMOVED AND INSTALLED NEW FLOORBEAM AT Y765 AND FS 68 IAW AIRBUS 320 SRM 51-72-11.