As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT OVERWING EXIT DOOR SHOWS SIGNS OF CORROSION AROUND LOWER EIGHT NUTPLATES INSIDE DOOR. (C-CHECK) RO 5/16/2020 UPON FURTHER INVESTIGATION, CORROSION FOUND TO BE ON LEFT OVERWING EXIT DOOR NUTPLATES. REMOVED AND REPLACED EIGHT TOTAL NUTPLATES IAW CRJ200 SRM.