As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT RAIL IN STGR 15L AND STA 409-469 , 485-553, 661-720 AT CPAX. DUE TO EXCESSIVE CORROSION ON SEAT RAIL IN STGR 15L AND STA 409 TO 720 AT CPAX WAS REPLACED PER CRJ900 SRM 53-31-49-101-001-A02 AND PER CRJ900 AMM 53-00-49 (CONFIG A12)