As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND THE RIGHT EMERGENCY EXIT UPPER EXIT SIGN WILL NOT ILLUMINATE. REMOVED AIRCRAFT FROM SERVICE. CLEANED THE CONNECTOR FOR THE RIGHT EMERGENCY EXIT UPPER EXIT SIGN EMB 140 AMM 33-50-00. NO PARTS REMOVED OR REPLACED. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.