As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF FROM LAS VEGAS, NV (KLAS) AT ABOUT 50 KNOTS, THE AIRCRAFT BEGAN TO VIBRATE. ACCOMPANIED BY A RATTLING NOISE. TAKEOFF WAS ABORTED AND TOWER WAS NOTIFIED. MAINTENANCE WAS CONTACTED CREW WAS DISPATCHED TO TROUBLESHOOT AND REPAIR. INITIALLY THE SHIMMY DAMPER WAS SUSPECTED AND REPLACED. A HIGH-SPEED TAXI WAS DONE, AND THE PROBLEM STILL EXISTED. THE NOSE TIRE WAS THEN CHANGED, AND RESULTS WERE SATISFACTORY. AIRCRAFT WAS THEN RETURNED TO SERVICE.