As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4216 DURING TAXI THE CREW REPORTED, RECEIVED AN EICAS DISPLAY CAUTION MESSAGE EMERGENCY LIGHT NOT ARMED EVEN THOUGH OVERHEAD SWITCH WAS IN THE ARMED POSITION. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE EMERGENCY LIGHT CONTROL MODULE ASSEMBLY IAW 145 AMM 33-21-01. THE OPERATIONAL CHECK WAS GOOD IAW EMB 145-AMM 33-50-00. THE AIRCRAFT WAS RETURNED TO SERVICE.