As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, THE CREW EXPERIENCED A SEVERE NOSE WHEEL SHIMMY AT APPROX 40 KNOTS AND ABORTED TAKEOFF. RETURNED TO THE BLOCKS WITHOUT FURTHER INCIDENT. MX TROUBLESHOOT AND FOUND FAILED SHIMMY DAMPNER. REMOVED OLD STYLE SHIMMY DAMPNER AND REPLACED WITH UPGRADED LORD SHIMMY DAMPNER (PN SE0170-7) IAW SK208-164A. OPS CHECKS AND GROUND TAXI CHECK PERFORMED WITH NO DEFECTS OR SHIMMY NOTED.