As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2712 DURING THE PRE FLIGHT INSPECTION FOUND THE AFT EMERGENCY EXIT SIGN ON THE CENTER CEILING PANEL FOR THE OVERWING DOORS INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 4 DC/AC INVERTER AND SIGN ASSEMBLY EMERGENCY LIGHT IAW EMB140 AMM 33-50-11. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.