As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT RAILS 4EA BTW FS 349.00 TO FS 677.00 RBL 9 AT FLOOR PASSENGER CABIN SEAT RAILS 4EA BTW FS 349.00 TO FS 677.00 RBL 9 AT FLOOR PASSENGER CABIN WERE EVALUATED OUT LIMITS THEREFORE WERE REPLACED PER CRJ-900 SRM 53-21-49-101-001-A01 AND AMM 53-00-49(CONFIG. A12)