As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT FLAP HINGE BOX AT WS 264.00 NUT CORRODED ON AFT INBOARD AND OUTBOARD SIDE OF BRACKET. C-CHECK RO 11/11/2020. REMOVED AND REPLACED LT HINGE BOX INBOARD & OUTBOARD NUTS (P/N MS17825-7) AT WS 264.00, IAW CRJ 200 AMM. TORQUE WRENCH WVACT 10147, CAL DUE 30 SEPT 21.