As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE EN ROUTE TO CLT, THE FLIGHT CREW RECEIVED A LEFT HAND PROPELLER HEAT FAIL CAS MESSAGE. THE FLIGHT CREW RETURNED TO CAK. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED 2 DE-ICE WIRING HARNESSES IN ACCORDANCE WITH HARTZELL MAINTENANCE MANUAL 61-00-60. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED TO SERVICE.