What was found
WHILE THE ACFT IS IN HEAVY CHECK FOUND RT INBD SEAT TRACK CORRODED AS/MARKED BETWEEN FRAMES 12/20. REMOVED AND REPLACED OF RT I/B SEAT TRACK FR 12-20 REF SRM 51-40-08, TOP COATED FASTENERS PER SRM 51-23-06,APPLIED CIC TO RT INBD SEAT TRACK BETWEEN FRAMES 12/20. REF: CPM 51-25-00. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.