What was found
AP TEST FAILURE ON YAW. TROUBLESHOOTING BY MAINTENANCE RESULTED IN 5 ADDITIONAL FAILURES. REMOVED AND REPLACED YAW TRIM ACTUATOR; MOC SUCCESSFULLY COMPLETED IAW AMM 67-14-00, 4-1.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AP TEST FAILURE ON YAW. TROUBLESHOOTING BY MAINTENANCE RESULTED IN 5 ADDITIONAL FAILURES. REMOVED AND REPLACED YAW TRIM ACTUATOR; MOC SUCCESSFULLY COMPLETED IAW AMM 67-14-00, 4-1.