As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT INSP, AIRCREW FOUND THAT THE EMERGENCY LIGHTS WOULD NOT TEST. AIRCREW PLACED THE EMERGENCY LIGHT SWITCH IN THE "ARM" POSITION AND ALLOWED THE EMERGENCY LIGHT BATTERY PACKS TO CHARGE. THEY PERFORMED AN OPS CHECK AND SYS CHECKED SATISFACTORY. ACFT RETURNED TO FLIGHT STATUS.