As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLE FAILED ON TAKEOFF. GROUNDED - YES. FOUND MULTIPLE HITS FOR MAINT MSG 22-31501 ON A/T BITE LEG 1 (ASM-1) REF B737-900 FIM 22-31 TASK 801. CYCLED A/T C/B 918-1 E1 PERFORMED SERVO MOTOR TEST REF FIM 22-31 TASK 822 INIT EBAL. NO FAULTS TEST GOOD. CURRENT STATUS TEST GOOD. ETOPS GND VERIFICATION SUCCESSFUL.