What was found
MAIN CABIN SEAT TRACK FLANGE HAS CORROSION AT RBL-24 STA 1320. REMOVED CORROSION ON SEAT TRACK STA 1320 RBL 24, IAW B757 SRM 51-10-02. 100% MATERIAL LOSS OUT OF LIMITS, IAW B757 SRM 53-00-52-1A FIG 101. REMOVE, FABRICATED AND INSTALLED NEW SEAT TRACK, IAW B757 SRM 51-40-02, 53-60-52, 51-40-05 AND BOEING DWG 146N5120 REV C AND REV A.