What was found
UPON LOWERING LANDING GEAR, EMERGENCY PARKING BRAKE LIGHT FLICKERED ON AND OFF QUICKLY. WHEN GREEN LGA STEER FAIL EICAS MESSAGE APPEARED, EXECUTED A GO-AROUND TO RUN QRH. NO FIX. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. COMPLIED WITH FIM 21-31-00 AND AMM 32-52-00, ALL FAULT MESSAGES CLEARED AND OPERATIONAL. STEERING CHECK IS GOOD.