What was found
CORROSION - RT SEAT TRACK CORRODED AS MARKED FR 13-18. REMOVED AND INSTALLED NEW RT SEAT TRACK AS MARKED FR 13-18 REF SRM 51-40-08 APPLIED SURFACE PROTECTION REF SRM 51-23-04,51-23-05,51-23-06. SEE W/O H6640 SN 298 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.