What was found
AMBER PARK BRAKE ON ILLUMINATED IN FLIGHT WHEN FLAPS WERE SET TO FULL. PERFORMED A GO AROUND, TALKED TO FODM AT 10,000', DECLARED AN EMERGENCY, EXECUTED A FLAPS 2 LANDING FOLLOWING APPLICABLE QRH AND QRC CHECKLISTS TO KEEP THE AMBER PARKING BRAKE ON CAS MESSAGE OFF. REMOVED DEFECTIVE PARKING BRAKE SWITCH (SY017) P/N: A4-1130 NSN AND INSTALLED A CUSTOMER SUPPLIED NEW SWITCH P/N: A4-1130 NSN. PERFORMED RIGGING PER THE PARKING BRAKE SWITCH POST-MAINTENANCE CHECKS. PERFORMED OPS CHECKS FOR THE PARKING BRAKE AND OPS CHECKED GOOD. NO DEFECTS NOTED. REF CE-680A AMM 32-44-15.