As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SERVICE DOOR LOWER SILL COVER PLATE FUSELAGE INNER SIDE EDGE IS CORRODED (C-CHECK) RO 4/9/2020 BLENDED CORROSION ON SERVICE DOOR, LOWER SILL COVER PLATE.OVER 75% MATERIAL LOSS.FOUND TO BE OUT OF LIMITS. IAW CRJ-200 SRM AND CRJ-200 SRM. REMOVED AND REPLACED SERVICE DOOR , LOWER SILL COVER PLATE P/N 601R38957-31. IAW CRJ-200 SRM USING CALIBRATED SCREWGUN # STS-4007 CAL. DUE DATE 10-OCT-2020.