As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING OUTBOARD MULTIFUNCTION SPOILER CORRODED HARDWARE ON THE ACTUATOR ROD END ANTI-ROTATION TAB. C-CHECK RO 10/9/2020. REMOVED AND INSTALLED NEW LT WING OUTBOARD MULTIFUNCTION SPOILER ROD END ANTIROATION TAB HARDWARE SPACER/SLEEVE WITH, REF TO CRJ900 AMM.