As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: EMER LIGHTS COME ON FOR A SEC THEN GO OUT DURING PREFLIGHT TEST. CORRECTIVE ACTION: FOUND ALL 4 EMERGENCY LIGHT BATTERIES DISCHARGED. CHARGED BATTERIES AND PERFORMED EMERGENCY LIGHTS OPERATIONAL CHECK IAW CE 680A AMM 33-50-00. OPERATIONAL CHECK SATISFACTORY.