As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO-THROTTLE DISENGAGED ON TAXI. GROUNDED - YES. PERFORMED AUTOTHROTTLE BITE PROCEDURE PER B737-800 FIM 22-31 TASK 801. NO CURRENT FAULTS FOUND. FOUND FAULT CODE 22-31543 ON FL 5. PERFORMED B737-800 FIM 22-31 TASK 830 WITH NO FAULTS FOUND. PERFORMED GOOD INTERACTIVE TESTS OF SERVO MOTOR, RANGE CHECK, AND TORQUE TESTS WITH NO FAULTS PER B737-800 FIM 22-31 TASK 801.