As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSEPCTION FOUND THE EMERGENCY EXIT LIGHT AT MAIN CABIN DOOR LOWER LEFT SIDE WOULD NOT ILLUMINATE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE LOWER LEFT PASSENGER DOOR EMERGENCY EXIT LIGHT BULBS AND BATTERY, IAW CRJ 700 AMM 33-51-00. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.