What was found
*LEFT BL9 FLOOR SEAT RAIL FROM APPROX. AFT OF FS394.00 TO APPROX FS409.00+128 HAS CORROSION ALONG ITS LENGTH AROUND FASTENER HOLE AND ON MULTIPLE ELEMENTS. (MARKED) (C-CHECK) RO 2/9/2021 LBL9 FLOOR SEAT RAIL FROM APPROX. AFT OF FS.394 TO APPROX. FS.409+128 FOUND TO BE UNSERVICEABLE. FABRICATED A NEW SEAT RAIL REF REO 601R-53-00-485 REV -D DATED 2018-01-29 AND INSTALLED THE NEW SEAT RAIL ON LBL9 FROM APPROX. AFT OF FS394 TO APPROX. FS409+128 REF CRJ 200 AMM 53-01-11-400-802. SEE CONTINUATION FOR FURTHER DETAILS.