As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SEAT RAILS BTW FS=349 TO FS=477 AND RBL 9'' ALSO IN FS 379 AND LBL 9 AT CPAX. FLOOR SEAT RAILS BTW FS=349 TO FS=477 AND RBL 9'' ALSO IN FS 379 AND LBL 9 AT CPAX WERE REPLACED PER CRJ900 AMM 53-00-49-400-801 (CONFIG A12)