What was found
DURING CLIMB, THRU 18,000, AN EFIS MISCOMPARE CAS MESSAGE DISPLAYED FOLLOWED BY AN ALT MISCOMPARE BOX. COMPARING 3 SYSTEMS, DTEREMINED THE LT SIDE ADC AT FAULT. ALTITUDE & AIRSPEED WERE BOTH INCORRECT. STOPPED CLIMB & DESCENDED TO FL 200. HAD MANY CASCADING CAS MESSAGES ASSOCIATED WITH A FAILED ADC. AP STAB TRIM FAIL AMBER MACH TRIM FAIL AMBER YAW DAMPER FAIL AMBER SPOILER FAULT CYAN STAB TRIM FAULT CYAN R ENG THRUST FAULT CYAN L ENG THRUST FAULT CYAN REVERTED ADC TO ADC 2 & DIVERTED. REMOVED AND REPLACED #1 ADC IAW CL-350 AMM 34-13-01; OPS CHECKED GOOD.