What was found
DURING M-CHECK, FOUND MAIN PASSENGER CABIN STA 200-303, RBL 22 SEAT TRACK HAS CORROSION. REMOVED CORROSION FOUND OUT OF LIMITS IAW SRM 51-10-3 & 53-05. REMOVED SEAT TRACK IAW SRM 51-30-1. FABRICATED SEAT TRACK IAW SRM 53-23-0, FIG 4 & LOCATED, DRILLED IAW SRM 51-10-4, TREATED & PRIMED IAW SRM 51-10-3. INSTALLED SEAT TRACK IAW SRM 51-30-1.