As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLES WILL NOT ENGAGE. GROUNDED - YES. UNABLE TO DUP/VERIFY DISCREP. A/T FFR SHOWED ASM 2 FAULT LOGGED ON FLT 6. PERFORMED B737-800 FIM 22-31 TASK 801 CURRENT STATUS TEST GOOD NUMEROUS TIMES. PERFORMED FIM 22-31 TASK 824, A/T INTERACTIVE SERVO TEST GOOD NUMEROUS TIMES W/NO FAULT. PER FIM AN INTERMITTENT FAULT.