As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT RAIL AT RBL9 FROM FS 349.00 TO FS 699.40 AT CABIN PAX. DUE TO NOT PERMISIBLE DAMAGE ON SEAT RAIL AT RBL9 FROM FS 349.00 TO FS 699.40 AT CABIN PAX PER CRJ900 SRM 53-21-49-101-001-A01, SRM 53-31-49-101-001-A02, AND SRM 53-41-49-101-001-A02 WERE REPLACED PER CRJ-900 AMM 53-00-49 ( CONFIG A12).