What was found
ACFT IS IN A C-CHECK, WHEN CORROSION WAS FOUND ON THE LT OTBD SEAT TRACK SUPPORT FROM FRAMES 46 THRU 50. MX BLENDED THE CORROSION AND WAS OUT OF LIMITS. REPLACED THE SUPPORT IAW SRM 53-00-11,AND EC 5320-01522, REV B. ALL WORK ACCOMPLISHED AND WILL BE RELEASED AT THE END OF THE CHECK.