As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS DO NOT ILLUMINATE WHEN SWITCH IS PLACED TO ARM WITH BATTERIES OFF. FOUND DURING PREFLIGHT. R & R THE NR 1 EMERGENCY BATTERY, CHARGED BATTERY WITH AIRCRAFT SYSTEM ON PERFORMED OPERATIONAL CHECK, ALL CHECKED GOOD. WORK DONE, IAW CE-680 CHAPT 33-50-10.