As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NOTICED AN UNCOMMANDED MOMENTARY ROLL IN CRUISE. THIS WAS FOLLOWED BY A SPOILERON FAULT STATUS MSG, WHICH REMAINED ON. LANDING PERFORMED UNEVENTFULLY. MAINTENANCE FOUND RIGHT SPOILERON INBOARD PCU FAILED. FOLLOWING THE PCU REPLACEMENT, THE AIRCRAFT RETURNED TO SERVICE.