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=847+16 TO FS=977 AND LBL 9''. FLOOR SEAT RAILS BTW FS=847+16 TO FS=977 AND LBL 9''. WERE EVALUATED OUT OF LIMITS PER CRJ-900 SRM 53-51-49-101-001-A02 AND WERE REPLACED PER CRJ900 AMM 53-00-49 (CONFIG A12)