As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOTHROTTLE WILL NOT ARM FOR TAKEOFF. ACFT GROUNDED. AUTOTHROTTLE FAULT HISTORY LOGGED, MX MESSAGE 22-31543 ON FLIGHT LEG 08. DURING CURRENT STATUS TEST, AUTOTHROTTLE WOULD NOT ARM WITH MX MESSAGE 22-31541. REPLACED FCC A IAW FIM 22-31 TASK 802. ALL INSTALLATION AND LLM MAINTENANCE TESTS PASSED IAW AMM 22-11-33-400-801. AUTOTHROTTLE CURRENT STATUS TEST PASSED IAW FIM 22-31 TASK 801.