What was found
NLG LANDING GEAR RETRACTION: AFTER TAKEOFF, DURING GEAR RETRACTION SEVERE VIBRATION FELT. GEAR RETRACTION TERMINATED AND LANDING LEFT EXTENDED WITH NORMAL INDICATIONS (3 GREEN). FLIGHT DIVERTED TO KGSP. DURING 30 MINUTE FLIGHT GEAR INDICATIONS WERE NORMAL (EXTENDED) AND AIRCRAFT HANDLING CHARACTERISTICS WERE NORMAL. NORMAL LANDING AND VISUAL INSPECTION, NO DISCREPENCIES NOTED. REMOVED AND REPLACED BOTH THE #1 AND #2 NLG WHEEL ASSEMBLES. SERVICED TIRES. RETURNED AIRCRAFT TO ORIGNAL CONDITIONAL AT THIS TIME. NO FURTHER DEFECTS NOTED WORK DONE IAW MM 32-40-15