What was found
CLT - DURING C-4 CHECK, FOUND SEAT TRACK CORRODED 100 INCHES ON AFT END BETWEEN BS 1540 AND BS 1640 OUTBOARD ON LEFT SIDE, CORROSION LEVEL 2. REPLACED SEAT TRACK BETWEEN BS 1540 AND BS 1640 PER SRM 51-10-00 AND BOEING DRAWING NR 146N5120. (M)