As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3695 THE FLIGHT ATTENDANT REPORTED THE LIGHTS ON THE AFT PORTION OF THE EXIT SIGN IN THE CABIN WERE INOPERABLE. REMOVED AND REPLACED THE EMERGENCY LIGHT BATTERY PACK NR 4 IAW CRJ 700 AMM 33-51-17. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.