As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS CAME ON WHILE AT CRUISE IN ARM POSITION. LIGHTS TURNED OFF DECENDONG THROUGH 10,000. NO CAS MESSAGE ASSOCIATED. CORRECTIVE ACTION: FOUND TO BE TRANSITORY CONDITION OF THE LIGHT CONTROL PANEL. OPS CHECK GOOD. IAW PHENOM 300 FIM 4885 33-50-00.