As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI TO REFUEL AREA, YAW ACTUATOR LIGHT ILLUMINATED, EXTINGUISHED, AND AGAIN ILLUMINATED WITH AUDIO WARNING AND MASTER CAUTION LIGHT. REMOVED AND REPLACED SEMA ACTUATOR IAW AMM 67-20-00, 4-14; MTF COMPLETED WITH NO FAULTS NOTED.