As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB AND CRUISE, RUDDER OSCILLATES INTERMITTENTLY WITH UPPER RUDDER (A) SELECTED. REMOVED UPPER RUDDER ACTUATOR- INSTALLED A REPAIRED ACTUATOR. PERFORMED OPERATIONAL AND LEAK CHECK WITH SATISFACTORY RESULT. TRAVEL CHECKS NORMAL, MAINTENANCE PERFORMED IAW MM 27-74-01.