As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* FLOOR SEAT TRACK AT LBL 9 HAS MULTIPLE AREAS OF CORROSION BETWEEN APPROX. FS 849.00 AND FS 985.00. (C-CHECK) RO 2/14/2020 REMOVED CORROSION FROM LBL9 SEAT TRACK FROM FS849-985, CORROSION AREAS EXCEEDED THE ALLOWABLE DAMAGE LIMITS. REMOVED AND REPLACED THE LBL 9 SEAT TRACK FROM FS849-985 REF CRJ 900 AMM. SEE CONTINUATION CARD FOR DETAILS.