What was found
SQI - AFTER TAKEOFF, CREW REPORTED A VERY SEVERE NOSE WHEEL SHIMMY. AS A PRECAUTION, THE AIRCRAFT WAS DIVERTED TO SPI WHERE IT MADE AN UNEVENTFUL LANDING. MAINTENANCE NOTED THAT THE RECAP TREAD WAS GONE. THE NOSE WHEEL ASSY, P/N 11480013, CHANGED ALONG WITH A NOSE WHEEL WELL INSPECTION. NO DEFECTS NOTED.