As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, THE EMERGENCY LIGHTS EICAS ANNUNCIATION ACTIVATED. THE EMERGENCY LIGHTS WERE NOT ON, AND THEY WERE ARMED AT THE TIME. NO PLF OR EXISTING CORRELATED FAULTS IN MAT. GROUND TESTED THE EMERGENCY LIGHT SYSTEM. ALL OPS NORMAL. NO EICAS MESSAGE, CHECKED GOOD.