As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION FOUND THE COURTESY LIGHTS REMAIN ILLUMINATED REGARDLESS OF SWITCH POSITION. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 BATTERY ASSEMBLY IAW EMB 135 AMM 33-50-04. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.