As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE EMERGENCY LIGHTS REMAIN ILLUMINATED WHEN THE EMER LT SWITCH IS IN THE ARM POSITION UNDER MAIN DC POWER. THE LIGHTS TURN OFF PROPERLY WHEN SELECTING THE SWITCH TO OFF.//CORRECTIVE ACTION// REMOVED AND REPLACED BOTH #1 & #2 EMERGENCY LIGHT BATTERIES. NO FURTHER DEFECTS NOTED. EMB505 MM 33-52-01 BATTERY PN OFF 7450L-00 SN OFF #1 001518 SN OFF #2 001359. INSTALLED PN 7450L-00 SN ON #1 005900 SN ON #2 006017