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 CORROSION ON LT OUTBD PAX SEAT TRACK FRAME 74-84. REMOVED AND REPLACED LT OUTBD SEAT TRACK AT FRAME 74-84 REF SRM 51-40-08. RESTORED SURFACE PROTECTION REF SRM 51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.