As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEAT TRACK IS CORRODED AT FS 371 - 485 AT LB9. REMOVED OLD SEAT TRACK P/N SH670-32249-3 FROM FS 371 TO 485 AT LBL9 IAW CRJ 900 AMM 53-00-49-000-801(A07). INSTALLED NEW SEAT TRACK P/N SH670-32249-3 FROM FS 371 TO 485 AT LBL9 IAW CRJ 900 AMM 53-00-49-400-801(A07).