As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SBA - FLT 9733 - ALL EMERGENCY LIGHTS DO NOT ILLUMINATE. CREW FOUND SWITCH WAS LEFT IN THE ARMED POSITION WHICH DISCHARGED ALL OF THE BATTERIES. REMOVED AND REPLACED ALL EMERGENCY LIGHT BATTERY POWER SUPPLIES. AIRCRAFT RETURNED TO SERVICE. (M)