As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLE WILL NOT ARM. ACFT GROUNDED. ACCOMPLISHED FIM 22-31 TASK 801 A/T CURRENT STATUS BITE AND AUTOTHROTTLE SERVO MOTOR TEST BOTH NR 1 AND 2. NO FAULTS AT THIS TIME. FOR FAULT 22-31502 ACCOMPLISHED B737-900 FIM 22-31 TASK 805, NO FAULTS. FOR DOCUMENTED FAULT 22-31583 ACCOMPLISHED FIM 22-31 TASK 822. REPLACED ASM NR 2 IAW AMM 22-31-91-400-801. INSTALLATION OPS TEST NORMAL. A/T OPERATIONAL TEST, CURRENT STATUS BITE TEST AND SERVO MOTOR TEST ALL OPS NORMAL, NO FAULTS, GROUND VERIFICATION SUCCESSFUL.