As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING BC4 CHECK DISCOVERED LEVEL 2 EXFOLIATION CORROSION ON LT OUTBOARD SEAT TRACK AT FS 41. CORROSION WAS FOUND TO BE OUT OF LIMITS. MAINTENANCE REMOVED AND INSTALLED NEW LT OUTBOARD SEAT TRACK AT FS 36 TO FS 41 IAW AIRBUS 319 SRM 51-72-11.