As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HNL - FLT 221 - ECU1 FAULT LIGHT ILLUMINATED ONCE DURING TO POWER ADDITION AND ONCE FOLLOWING ENGINE START. REST OKAY ON BOTH OCCASIONS. CHECKED ELECTRICAL CONNECTORS TO ECU1. CHECKED GOOD. ENGINE RAN OKAY AT IDLE AND POWER RUN FOR TAKEOFF. FOUND TO BE GOOD IAW JIC 72-00-00-ERU-10040-001. (X)