As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING ASA T/C 78273000, FOUND ENGINE 1 FAULT CODE SHORT TIME 73-11281 "EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE", FLIGHT LEG 3. GROUNDED - YES. REMOVED AND INSTALLED NEW EEC. REF B737-900 AMM 73-21-60-000-801-F00 & 73-21-60-400-801-F00.