As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR FIXED STAIR PANEL IS CORRODED UNDER LOWER NUTPLATE HOLES AND INTERIOR STIFFENERS. C-CHECK RO 11/21/2020. REMOVED CORROSION ON PAX DOOR FIXED STAIR PANEL, REF CRJ200 SRM. EVALUATED AND FOUND TO OUT OF LIMITS, REF CRJ200 SRM. REPLACED STEP PANEL WITH NEW P/N 601R31773-3 PANEL, REF CRJ200 SRM. SEE CONTINUATION CARD FOR DETAILS.