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 15R AND STA 485-533, 581-716, 661+90- 720 AT CPAX. SEAT RAIL STGR 15R BTW STA 485 TO STA 720 WERE EVALUATED AND FOUND TO EXCESSIVE CORROSION PER CRJ-900 SRM 53-31-49-101-001-A02 AND WERE REPLACED PER CRJ900 AMM 53-00-49