What was found
GFK - FLT 7563 - DURING CRUISE, THE PILOT NOTICED THE CIRCUIT BREAKER FOR THE PROP ANTI-ICE WAS OPEN. THE PITOT RESET THE CIRCUIT BREAKER, AND A BURNED PLASTIC SMELL WAS EMANATING FROM THE INSTRUMENT PANEL NEAR THE PROP ANTI-ICE AMMETER. POWER WAS REMOVED FROM THE CIRCUIT WHILE THE COCKPIT WAS VENTILATED, AND THE FLIGHT CONTINUED UNEVENTFULLY. A SHORT CIRCUIT EVENT DUE TO A FAULTY WIRING CONNECTION THAT WAS MADE DURING A PREVIOUS MAINTENANCE VISIT. THE SYSTEM WAS TROUBLESHOT, FAULT WIRING CONNECTION WAS CORRECTED, WIRE HA32 LEADING FROM THE PROP DE-ICE AMMETER, AND CONNECTINOR P161 WAS REPLACED, THE SYSTEM WAS OPS CHECKED, AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)