What was found
CREW NOTED DURING TAKEOFF, NOSE WHEEL SHIMMY/VIBRATION. ALSO, AIRCRAFT PULLS TO THE LT WITH TILLER IN NEUTRAL POSITION. CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE C/A - REMOVED AND REPLACED BRAKE CONTROL UNIT IAW MM 32-41-02. OPS CHECK GOOD. REMOVED AND REPLACED THE LT AND RT NOSE WHEEL ASSY IAW AEAI W/C 32-700-17. AC RETURNED TO SERVICE. (K)