As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOVAL OF SERVICE DOOR PLATE ASSY FOUND CORROSION ON PLATE WHERE PLATE AND COIN MAT CONTRACTS THE PLATE. DOOR PLATE REQUIRES REPLACEMENT. C-CHECK RO 9/5/2020. REPLACED DOOR PLATE P/N 601R38957-31 AT SERVICE DOOR PLATE ASSY, IAW CRJ-200 SRM.