As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON TAKEOFF AND AFTER RAISING THE LANDING GEAR, RECEIVED A DOWN AND UNLOCK NOSE GEAR WARNING. BROUGHT THE GEAR HANDLE DOWN AND GOT AN ALL WHEELS DOWN AND LOCK ANNUNCIATION. ALMOST IMMEDIATELY, A HYD VOLUME LOW A (CAS MESSAGE) APPEARED. HYDRAULIC GAUGE FOR THE A SYSTEM READ 0 QUANTITY. SECURED THE A HYDRAULIC SYSTEM AND DECLARED AN EMERGENCY. LANDED UNEVENTFULLY.