As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER FLOOR SEAT TRACK BETWEEN FS 364 AND FS 409 AT LBL9 IS CORRODED SEVERAL LOCATIONS. (C-CHECK) RO 7/31/2020 REMOVED FLOOR SEAT TRACK BETWEEN F.S. 364 AND F.S. 409 AT LBL9 IAW CRJ200 AMM. FABRAICATED WITH ALT MATERIAL AND INSTALLED IAW BOMBARDIER REO.