As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE CONTROL LIGHT ILLUMINATED DURING TAXI OUT EXTINGUISHED AFTER ENGINE SHUTDOWN. ACFT GROUNDED. PERFORM EEC BITE PROCEDURE ON NR 1 ENGINE. FOUND MAINT MESSAGE 75-20581 AND 75-20531, IAW AMM 73-00, TASK 801. PERFORM ACTUATORS TEST FOR BOTH MAINT MSG. NO MAINT MESSAGE ON FMCS CDU. FAULT IS NOT ACTIVE AT THIS TIME. INTERMITTENT FAULT. NO PAST HISTORY IAW AMM 71-00-00-700-807-FOO. GROUND TEST OK.