As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR LOWER SILL ANGLE IS CORRODED AT THE PAX DOOR BONDING JUMPER LOCATION AND JUST FORWARD OF THE PAX DOOR AFT HANDRAIL ARM FITTING. (C-CHECK) RO 2/21/2021. PAX DOOR LOWER SILL ANGLE WAS REMOVED AND REPLACED IAW CRJ 200 SRM 51-42-21, SEE ATTACHED CONTINUATION CARD FOR WORK PERFORMED.