As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT SIDE SEAT RAIL LOCATED APPROXIMATELY FS 589 TO 661+14 HAS EVIDENCE OF CORROSION AT SEVERAL MARKED LOCATIONS. C-CHECK RO 10/9/2020. REMOVED CORROSION FROM RT SIDE SEAT RAIL BETWEEN FS 589 AND FS 661.00 +14, REF CRJ900 SRM. FOUND TO BE OUT OF LIMITS, REF CRJ900 SRM AND BOMBARDIER STANDARDS MANUAL. REMOVED CORRODED SIDE SEAT RAIL SECTION FROM FS 573 TO FS 661+13, REF CRJ900 AMM AND INSTALLED REPLACEMENT SIDE SEAT RAIL FROM FS 573 TO FS 661+13, REF CRJ900 AMM.