As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C4 CHECK DISCOVERED GALVANIC CORROSION LOCATED ON FLOORBEAM FROM FR 66+8 TO FR 68, Y-1292. MAINTENANCE REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-00-14. REMOVED FLOORBEAM FROM FR 66+8 TO FR 68, Y-1292 IAW AIRBUS 320 SRM 51-72-11. INSTALLED NEW FLOORBEAM FROM FR 66+8 TO FR 68, Y-1292 IAW AIRBUS 320 SRM 51-72-11.