What was found
ON DEPARTURE, GEAR WAS SELECTED UP AND WE STARTED HEARING LOUD BANGS COMING FROM FRONT OF THE AIRCRAFT. WE HEARD 10-15 BANGS AND ALSO RECEIVED A GEAR DISAGREE N CAS MESSAGE. AFTER ABOUT 30 SECONDS IT STOPPED AND THE CAS MESSAGE CLEARED. REMOVED AND REPLACED NOSE LANDING GEAR SQUAT SWITCH IAW AMM 32-60-10. PERFORMED OPS CHECK WITH NO DEFECTS NOTED. PERFORMED LANDING GEAR EXTENSION AND RETRACTION IAW AMM 32-30-00 WITH NO DEFECTS NOTED. NO FURTHER ACTION IS REQUIRED CURRENTLY.