What was found
MAIN CABIN SEAT TRACK FLANGE HAS CORROSION AT RBL-24 STA 1540. REMOVED CORR ON SEAT TRACK STA 1540 RBL 24, IAW B757 SRM 51-10-02. ORIGINAL MATERIAL .090, REMAINING .034, LOSS .056, OUT OF LIMITS, IAW B757 SRM 53-00-52-1A FIG 101. REMOVED, FABRICATED AND INSTALLED NEW SEAT TRACK, IAW B757 SRM 51-40-02, 53-60-52-01 FIG 1 AND BOEING DWG 146N5120 REV B.