What was found
IN CRUISE FLIGHT AT FL430, WE HEARD A LOUD WIND NOISE AND FELT A SLIGHT VIBRATION. SHORTLY AFTER, WE RECEIVED A GEAR DOOR OPEN AMBER MESSAGE FOLLOWED BY A GEAR CONTROL FAULT AMBER MESSAGE. AFTER DISCUSSING WITH MX AND THE FODM, WE ELECTED TO CONTINUE TO OUR DESTINATION. ON DESCENT, WE RECEIVED A GEAR DISAGREE N AMBER MESSAGE. UPON GEAR EXTENSION, ALL GEAR EXTENDED NORMALLY, GEAR DOORS CLOSED NORMALLY, AND ALL MESSAGES EXTINGUISHED. REMOVED FAULTY NLG UPLOCK SWITCH AND INSTALLED NEW CONDITION SWITCH IAW AMM 32-31-05. PERFORMED THE NLG UPLOCK SWITCH ADJUSTMENT IAW 32-31-00. POWERED AIRCRAFT AND USING AN EXTERNAL HYD POWER CART, PERFORMED THE MLG OPS CHKD WITH NO DISCREPANCIES NOTED IAW MM 32 -00-00.