As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT RAILS (SEVERAL LOCATIONS) LBL 9 AND RBL 9 BTW FS 874.00 TO FS 977.00 AT PASSENGER CABIN. SEAT RAILS LBL 9 AND RBL 9 BTW FS 874.00 TO FS 977.00 AT PASSENGER CABIN WERE EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-51-49-101-001-A02 AND WERE REPLACED PER CRJ900 AMM 53-00-49 (CONFIG A12)