As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*LH WING AILERON INBD PCU FORK HAS EVIDENCE OF CORROSION (C-CHECK) RO 1/29/2021 REMOVED AND REPLACED WITH SERVICEABLE THE LH AILERON INBOARD PCU REF CRJ-200 AMM 27-14-01-400-801. RIGG AND OP TEST CHECKED GOOD. COMPLIED WITH TASK CARD 27-900-1002-SKY.