What was found
MAIN CABIN SUPERNUMERARY LT SEAT TRACK UPPER SURFACE CORRODED MAIN CABIN SUPERNUMERARY LT SEAT TRACK CORROSION FOUND TO BE OUT OF LIMITS, IAW B757 SRM 53-00-52-1A FIGURE 101 DETAIL 1. REMOVED SEAT TRACK, IAW B757 SRM 51-40-02. FABRICATED NEW SEAT TRACK, IAW FEDEX EA F-5310-T0357787-P1. MAINFRAME-STA 345 TO 377 (LBL 7) SUPERNUMERARY SEAT TRACK-MATERIAL SUBSTITUTION, VA DWG 3504-NC-2, VA DWG 3470 REV G, VA DWG 3504 REV G, B757 SRM 51-40- 05, AND B757 AMM 51-21-10. INSTALLED NEW SEAT TRACK, IAW VA DWG 3470 REV G.