As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE WITH AUTO PILOT ON OR OFF, ACFT EXPERIENCING UNUSUAL RUDDER KICKS. NO FAULTS ON PFR. CARRIED OUT OPERATIONAL TEST IAW AMM 27-22-00-710-001A WITH NO FAULT. FUNCTIONAL CHECK OF RUDDER MOVEMENT CARRIED OUT WITH NO FAULT. AFS & LAND TESTED OK. VISUAL INSPECTION OF RUDDER CARRIED OUT WITH NO FLUID LEAKS OBSERVED. RUDDER MOVEMENT NORMAL. ALL HYD SYS FULL. MCDU INTERROGATED & NO FAULTS RECORDED, NO HISTORY.