As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SERVICE DOOR SURROUND LOWER SILL HAS CORROSION, MARKED. C-CHECK RO 10/13/2020. SERVICE DOOR LOWER SILL FOUND TO BE OUT OF LIMITS, REF CRJ200 SRM. SEE CONTINUATION CARD FOR DETAILS. REMOVED AND REPLACED WITH NEW SERVICE DOOR LOWER SILL, REF CRJ200 SRM AND BOMBARDIER DWG.