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 Y1292 BEAM AT FS 66. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-00-14 FIG 102. MAINTENANCE REMOVED AND INSTALLED NEW FLOORBEAM AT Y1292 AND FS 66 IAW AIRBUS 320 SRM 51-72-11.