As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE VISIT FOUND THE EMERGENCY LIGHT SIGN INOPERABLE IN ROW 12 CEILING SIGN AFT OF SIGN. THE AIRCRAFT WAS REMOVED FROM SERVICE. TESTED EMERGENCY LIGHT IAW EMB AMM 33-50-00. NO DEFECTS FOUND. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.