What was found
MDC SEAT TRACK BETWEEN FRAME 44.50 - 54, RBL -Y953 HAS AREAS OF CORROSION. REMOVED CORROSION IAW SRM 51-74-10. FOUND TO BE OUT OF LIMITS IAW SRM 53-10-16. R & R SEAT TRACK Y953, FRAME 44.5 - 54. PN A5383221120400 IAW SRM 51-40-21 & SRM 51-40-44. MAJOR REPAIR.