What was found
FLOOR SUPPORT TOP PLATE ON LBL 9 HAS CORROSION FROM FS 589 TO FS 621. BLENDED FLOOR SUPPORT TOP PLATE AT LB 9, FS 559-FS 621. MAX MATERIAL REMOVED .011. FOUND TO BE OUT OF LIMITS IAW REO 601R-53-00-005, DETAIL B. UPON FURTHER INVESTIGATION FOUND OUT OF LIMITS AND REQUIRES ENGINEERED DISPOSITION. INSTALLED NEW LBL 9.0, SEAT RAIL BEAM FROM FS 574-621 IAW BSC REO 601R-53-61-3780, REV A DATED 2011-07-15. REMOVED 3 EA CORRODED SEAT TRACK SEGMENTS FROM LBL 9.0 BETWEEN FS 574-621 IAW SRM 51-41-02. LOCATED AND INSTALLED 3 EA SEAT TRACK FILLER SEGMENTS TO LBL 9.0 BETWEEN FS 574-621 IAW SRM 51-41-02. REMOVED CORRODED LBL 9.0, SEAT RAIL CAP BETWEEN FS 571-621. DRILLED/LOC FASTENERS IN NEW CAP IAW SRM 51-42-06 AND 51-42-21. LOCATED AND DRILLED NEW SERVICEABLE SEAT RAIL BEAM PN 601R35031-3 AT LBL 9.0 FS 574-FS 621 IAW SRM CH 51-40-11.