As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING TASK CARD 78273000 FOUND SHORT TIME FAULT 73-20012 ON #2 ENGINE ENGINE INTERNAL EEC FAULT. GROUNDED - YES. ACCOMPLISHED TASK CARD #7827300 NO CURRENT AND FAULT HISTORY FOR ENG #2. PER B737-800 FIM 73-21 TASK 801 THE FAULT WAS INTERMITTENT FAULT. PERFORMED GOOD EEC TEST FOR ENG #2 NO FAULT IS RECORDED REF B737-800 AMM 73-21-00-700-804-F00.