What was found
MAIN CABIN SEAT TRACK BETWEEN FRAME 72 AND 73 LBL 34 IS CORRODED. REMOVED CORROSION IAW SRM 53-10-16. CHECKED LIMITS, ORIGINAL THICKNESS 0.140. MATERIAL LOSS 0.041. MATERIAL REMAINING 0.099. FOUND TO BE OUT OF LIMITS. REMOVED SEAT TRACK SECTION, MATERIAL ID A53274005, PO NR 686863.1, FABRICATED, LOCATED & DRILLED SEAT TRACK IAW SRM 53-10-16 & SRM 51-72-10. ALODINED IAW SRM 51-21-10. PRIMED & PAINTED IAW SRM 51-23-10. INSTALLED SEAT TRACK IAW SRM 53-10-16.