As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C3 CHECK DISCOVERED CORROSION ON THE RT OUTBOARD SEAT TRACK FROM FS 42 TO FS 46+16". CORROSION WAS REMOVED AND FOUND OUT OF LIMITS IAW A320 SRM 53-31-15 FIG 101. MAINTENANCE REMOVED AND INSTALLED NEW RT OUTBOARD SEAT TRACK FROM FS 41 TO FS 47 IAW A320 SRM 51-72-11.