As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: CORROSION ON SEAT RAILS OF LBL9 BTW FS708.00 TO FS1000.00. CORROSION ON SEAT RAILS OF LBL9 BTW FS708.00 TO FS1000.00. EVALUATED OUT LIMITS PER CRJ900 SRM 53-41-49-101-001-A02, SEAT RAILS OF LBL9 BTW FS708.00 TO FS1000.00. REPLACED PER AMM 53-00-49 (CONFIG. A12).