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 RT INBD PAX SEAT TRACK FRAME 74-84. REMOVED RT INBD PAX SEAT TRACK FRAME 74-84. INSTALLED NEW RT INBD SEAT TRACK FR74-84. APPLIED TOPCOAT AND CIC TO RT INBD SEAT TRACK FR74-84. REF SRM 51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.