As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING INSPECTION CORROSION DISCOVERED ON CABIN FLOORBEAM AT FS 68 TO FS 79 AND AT BL Y-1235. MAINTENANCE REMOVED CORROSION AND WAS FOUND TO BE OUT OF LIMITS IAW AIRBUS 310 SRM 53-00-14 FIG 102. REMOVED AND INSTALLED NEW FLOORBEAM AT FR 68 TO FR 69 AND Y-1235 IAW AIRBUS 320 SRM 51-42-11.