As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER LIFT OFF, THE LEFT ENGINE DEICE FAIL CAS MESSAGE CAME ON. RETURNED TO THE FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT ENGINE EJECTOR FLOW CONTROL VALVE. OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.