As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* RH SIDE SEAT RAIL U CHANNEL IS CORRODED. SIDE SEAT RAIL STRUCTURE FORWARD OF FS409.0 +128 IN AREA'S. CIRCLED WITH GREASE PENCIL. (C-CHECK RO 7/27/2021) REMOVED AND REPLACEDRH SIDE SEAT RAIL U CHANNEL (P/N 601R38312-89) FWD AT FS364.00 TO FS409.00+16. REF: CRJ 200, AMM 53-01-11-400-802.