As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING BC-4 CHECK DISCOVERED CORROSION ON FLOORBEAM SEAT RAIL AT FR 66 AND Y-1292. CORROSION WAS FOUND TO BE OUT OF LIMITS. MAINTENANCE REMOVED AND INSTALLED NEW FLOORBEAM FROM FR 64 TO FR 66 AND Y-1292 IAW AIRBUS 319 SRM 51-72-11.