As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H O/B FLAP #4 HINGE BOX UNDER SPRING HAS CORRODED MOUNT BOLTS. (C-CHECK) RO 4/22/2020 REMOVED AND REPLACED L/H O/B FLAP #4 HINGE BOX UNDER SPRING (04) FOUR MOUNT BOLTS. IAW CRJ200 AMM. CALIBRATED TOOL: TOOL WRENCH STS-3818 S/N 0518901775 CAL DUE DATE: 05 APR 2020