As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT RAILS LBL9 (02 SEGMENTS) BTW FS 661.00+32 TO FS 670.00 AT PASSENGER CABIN. SEAT RAILS LBL9 (02 SEGMENTS) BTW FS 661.00+32 TO FS 670.00 AT PASSENGER CABIN ARE OUT OFF LIMITS PER CRJ-900 SRM 53-31-49-101-001-A02 AND WERE REPLACED PER CRJ900 AMM 53-00-49 (CONFIG A12).