As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND FAULT ENG 1 EEC C2 DURING ACCOMPLISHEMENT OF TC 05-020-01. GROUNDED - YES. ACCOMPLISHED AMM TASK 73-00-00-700-802-G00 AND IFIM 731 451 51. ENGINE IDLE SYSTEM TEST PASSES. NO CORRELATED FAULTS FOUND. NO CHAPTER 46 FAULTS FOUND. MESSAGE C2 ERASED.AIRCRAFT OKAY FOR SERVICE.