As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER OSCILLATION FELT ON CLIMB OUT. TRIM WAS MOVING RAPIDLY BETWEEN L 0.2 & L 0.4. MOVEMENT FELT IN RUDDER PEDALS WITH AP1 ON , AP2 ON & AP OFF. OSCILLATION MORE PRONOUNCED ON APPROACH AT LOW SPEEDS. TRIM MOVED RAPIDLY BETWEEN L 0.2 & R 0.4. R & R FAC 1 IAW AMM 22-66-34. PERFORMED AFS TEST. OPERATIONS CHECKED GOOD IAW AMM 22-96-00-710-001-A. PERFORMED TEST OF RUDDER TRIM ACTUATION, OPERATIONS CHECKED GOOD IAW AMM 27-22-00-710-002-A.