What was found
ON DEPARTURE, SELECTED GEAR UP AND RECEIVED 4-5 AMBER CAS MSGS, INCLUDING GEAR DISAGREE L N R. GEAR SHOWED AMBER DN ON NOSE, AND YELLOW HASHING ON LEFT AND RIGHT GEAR. RAN PROCEDURE AND GEAR INDICATED THREE GREEN. ONLY REMAINING CAS MESSAGE IS AMBER GROUND DETECT FAULT. RAN GROUND DETECT FAULT PROCEDURE AS WELL AND DUMPED CABIN PRIOR TO LANDING. REMOVED AND REPLACED NLG SQUAT SWITCH WITH NEW SWITCH. PERFORMED SWITCH / ADJUSTMENT. PERFORMED SATISFACTORY OPS CHECK & GEAR SWINGS. WORK PERFORMED IAW AMM 32-60-10 AND 32-30-00.