As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE CHECK WHEN POWERING DOWN THE AIRCRAFT AT NIGHT THE CENTER AISLE AND ASSOCIATED EMERGENCY LIGHTS COME ON AND LIGHTS WOULD NOT EXTINGUISH. THE AIRCRAFT WAS REMOVED FROM SERVICE. COMPLIED WITH OPERATIONAL CHECK OF EMERGENCY LIGHTS PER EMB 145 AMM 33-50-00. NO FAULTS NOTED. NO PARTS REMOVED OR REPLACED. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.