What was found
MCD SEAT TRACK BETWEEN FRAME 40.25 - 38.20, RBL -Y450 HAS AREAS MARKED FOR CORROSION & SCRATCHES, FOUND TO BE OUT OF LIMITS IAW SRM 53-10-16 FIG 101. REMOVED 3 EA SUPPORTS & SEAT TRACK IAW SRM 51-40-21. INSTALLED ALL SUPPORTS & NEW SEAT TRACK IAW SRM 51-40-21. DAMAGE DIMENSIONS, L 4" X W 0.075" X D 0.50", CAT A MAJOR REPAIR.