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 LBL9 AND RBL9 BTW FS 847.00 TO FS 977.00 AT PASSENGER CABIN. FLOOR SEAT RAILS LBL9 AND RBL9 BTW FS 847.00 TO FS 977.00 AT PASSENGER CABIN WERE EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-31-49-101-001-001-A02 AND WERE REPLACED PER CRJ900 AMM 53-00-49 (CONFIG A12)