As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT SIDE SEAT RAIL FS 693-720 CORRODED. C-CHECK RO 10/9/2020. REMOVED CORROSION FROM LT SIDE SEAT RAIL BETWEEN FS 693.00 AND FS 720.00, REF CRJ900 SRM. FOUND TO BE OUT OF LIMITS, REF CRJ900 SRM AND BOMBARDIER STANDARDS MANUAL. REMOVED CORRODED SIDE SEAT RAIL SECTION FROM FS 693.00 TO FS 720.00, REF CRJ900 AMM AND INSTALLED REPLACEMENT SIDE SEAT RAIL FROM FS 693.00 TO FS 720.00, REF CRJ900 AMM.