As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON RBL9 SEAT RAIL BTW FS349.00 TO FS682.00 (6 EAS). DUE TO EXCESSIVE DAMAGE ON SEAT RAIL ON RBL9 SEAT RAIL BTW FS349.00 TO FS682.00 (6 EAS) WERE FOUND OUT OF LIMITS PER CRJ-900 SRM 53-31-49-101-001-A02 THEREFORE WERE REPLACED PER CRJ-900 AMM 53-00-49 CONF(A12)