As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE CONTROL ON EICAS AND STATUS MESSAGE.(<P>PERFORMED FIM 73-21 FAULT TREE 878 AND 71-01 TASK 936. REMOVED AND REPLACED LEFT ENGINE EEC, TESTED AND FOUND OK AS PER AMM 73-21-15. PERFORMED ENGINE RUN UP AS PER AMM 71-00-00. NO FAULT FOUND AT THIS TIME.</P>)