What was found
(CAN) DURING THE FLIGHT, THE FLIGHT CREW ENCOUNTERED AN EICAS MESSAGE MAU 1A FAIL. THIS RESULTED IN NO NOSE WHEEL STEERING AVAILABLE AFTER LANDING. AS A PRECAUTION,THE FLIGHT CREW DECLARED AN EMERGENCY WITH ATC AND LANDED RUNWAY 36. THE LANDING WAS OTHERWISE UNEVENTFUL, AND AFTER A BRIEF INSPECTION, THE ACFT WAS TOWED TO THE GATE BY MAINTENANCE. THERE WAS NO ADVERSE PASSENGER REACTION. RESOLUTION REPLACED NIC 1 PROCESSOR IN AND CHECKED SERVICEABLE IAW AMM 31-41-04, PB 401, CONF 1.