What was found
WHILE PASSING THROUGH 19,000 FEET, THE CREW RECEIVED A RIGHT HAND PROP HEAT FAIL MESSAGE. THE CREW RESET THE SYSTEM BUT IT FAILED AGAIN. THE CREW WAS ADVISED THAT THE WEATHER WAS NOT ACCEPTABLE TO DEFER THE PROP HEAT AND THE CREW RETURNED TO PIT. MAINTENANCE INSPECTED AND REPLACED THREE BROKEN PROP LEADS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE. FLIGHT 4032 WAS TRANSFERRED TO ANOTHER AIRCRAFT TO FACILITATE MAINTENANCE AND FLIGHT 4032 CONTINUED WITH NO FURTHER INCIDENTS.