As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAIL AT 20 DEGREES AFTER TAKEOFF, AMBER CAS MSG POSTED. DECLARED EMER, SUBSEQUENTLY MADE UNEVENTFUL LANDING AT DEPARTING AIRPORT. INTENDED FLIGHT WAS A POSITIONING LEG, THUS FUEL LOAD & ACFT TAKEOFF WEIGHT WERE BELOW MAXIMUM LANDING WEIGHTS.