As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE CONTROL LIGHT ON DURING TAXI. GROUNDED - YES. PERFORMED B737-800 FIM 73-06 TASK 801 EEC BITE SHOW FAULTS. POSITION SIGNALS DISAGREE AND FAULT CODE 75-20572 LPTACC DEMAND AND SIGNAL DISAGREE. PERFORMED ACTUATORS TASK 71-00-00 ONLY FAULT CODE 75-20532 REMAINS ACCOMPLISHED ENG #2 RUN NO DEFECTS NOTED.