As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF, THE ACFT BEGAN TO SHIMMY AT 30 KNOTS AND BEGAN TO BECOME VIOLENT THROUGH 60 KNOTS. ABORTED T/O AT 75 KNOTS. AT 70 KNOTS THROUGH STOPPING, ACFT SHOOK VIOLENTLY. IT APPEARS TO BE A NOSE WHEEL SHIMMY. TAXI IN WAS NORMAL. 09-28-07 FOUND UPPER SENSOR LINK ATTACH HARDWARE BELOW TORQUE LIMITS. RETORQUED PER 750 MM CH 32-20-00. REMOVED AND REPLACED BOTH NOSE WHEEL AND TIRE ASSYS PER 750 MM CH 32-24-01.