As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACFT IN HEAVY CHECK MAINT FOUND RT SEAT TRACK FR12-FR21 HAS CORROSION BETWEEN FR14-FR16 AS MARKED. REMOVED RT SEAT TRACK FR12-FR21. REF SRM 51-40-08, INSTALLED RT SEAT TRACK FR12-21 REF SRM 51-40-08 APPLIED SURFACED PROTECTION TO RT SEAT TRACK AT FR 14-16 REF SRM 51-23-06 CPM 51-25-00. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.