As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLE WILL NOT STAY ENGAGED GROUNDED YES. A/T FFR SHOWS (ONLY 1 LEG) MSG NR 22-31688 ASM 2 FAULTS TOGETHER WITH NUMEROUS CREW OPS ERROR MSG NR 22 31680. CHECKED REST OF ALL A/T 40 LEGS NO FAULTS. NO FAULTS ON DFCS FFR. ACCOMPLISHED FIM 22-31 TASK 805 AND MM 22-31-00 SERVO MOTOR TESTS INTERACTIVE TESTS TORQUE TESTS AND THROTTLE TESTS ALL PASS.