As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT TRACK LOCATED BTW FS364.00 TO FS394.00 AND LBL9.00 DUE TO EXCESIVE CORROSION AT SEAT TRACK LOCATED BTW FS364.00 TO FS394.00 AND LBL9.00 FUSELAGE STRUCTURE PASSENGER CABIN WAS REPLACED PER CRJ-900 SRM 53-21-49-101-001-A01 AND CRJ-900 AMM 53-00-49 (CONFIG. A12)