As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3461 THE CREW REPORTED THE GEAR IN TRANSIT INDICATION DID NOT COME ON DURING RETRACTION OR EXTENSION. THE CREW DECLARED AN EMERGENCY AND ELECTED TO RETURN TO MIA. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND INSTALLED LANDING GEAR ELECTRONIC UNIT (LGEU) IAW EMB-145 AMM32-32-01. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.