As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE EMERGENCY LIGHTS DO NOT FUNCTION WITH THE SWITCH IN THE ON POSITION AND NO OTHER ELECTRICAL POWER ON THE AIRCRAFT. THE EMER LIGHTS DO OPERATE NORMALLY WITH MAIN DC POWER IN BOTH THE ARM OR ON POSITION. REPLACED BATTERIES. OPS CHECKED GOOD. IAW AMM 33-50-07