As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON LH SEAT RAIL AT LBL 9, BTW FS 847.00 + 16.00 TO FS954.00 AT PASSENGER COMPARTMENT FLOOR STRUCTURE. DUE TO EXCESSIVE CORROSION ON LH SEAT RAIL AT LBL 9, BTW FS 847.00 + 16.00 TO FS 954.00 WAS REPLACED PER CRJ-900 SRM 53-31-49-101-001-A02 AND CRJ-900 AMM 53-00-49-000-801 (CONFIG. A12) AND AMM 53-00-49-400-801 (CONFIG. A12)