As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*R/H FLOOR SEAT RAIL AT RBL 9 FROM APPROX. FS349.00-FS477.00 HAS MULTIPLE SPOTS OF CORROSION AND SCRATCHES (C-CHECK RO 7/7/2021) R/H FLOOR SEAT RAIL AT RBL 9 FROM APPROX. FS349.00-FS477.00 FOUND TO BE OUT OF LIMITS. REMOVED AND INSTALLED NEW SEAT TRACK AT RBL 9 FROM APPROX. FS349.00-FS477.00 REF CRJ900 AMM 53-00-49-400-801-A07.