As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE WHEEL VIBRATION AND SHIMMY FELT AFTER PUSHBACK/START OF TAX I ROTABLE PARTS INSTALLED INFO. REPLACED LH AND RH NLG TIRES AND WHEEL ASSYS REF AMM 32-45-02. INSPECTED NLG ASSY REF FIM 32-51 TASK 801, NO DEFECTS NOTED, REPLACED BOTH NLG TIRES AS PRECAUTIONARY MEASURE. TAXIED AIRCRAFT, NO VIBRATION OR SHIMMY NOTED, OK TO CONTINUE.