As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT FLAP HINGE BOX AT WS 264.00 NUT CORRODED ON AFT INBOARD SIDE OF BRACKET. C-CHECK RO 11/11/2020. REMOVE AND REPLACE NUT ON RT FLAP HINGE BOX AT WS 264.00 ON AFT INBOARD SIDE OF BRACKET, IAW CRJ 200 AMM. TORQUE WRENCH WVACT 10147, CAL DUE 30 SEPT 21.