As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER DE-ICE SYS TO BE OPERATING AT 10 AMPS WITH SWITCH SHORTED & CAUSING FUMES. OPERATED SYS & FOUND TO BE RUNNING AT 10 AMPS. PERFORMED TROUBLESHOOTING PROCEDURE IAW 208 MM. REPLACED PROP DE-ICE BRUSHES WITH NEW UNITS, FOUND ONE PROP DE-ICE HARNESS TO BE OPEN. REPLACED ALL THREE DE-ICE HARNESS LEADS WITH NEW UNITS. SYS FUNCTIONS NORMALLY WITH NO DIFFICULTIES. REPLACED PROP DE-ICE SWITCH AS A PRECAUTIONARY MEASURE. SYS OPERATIONS CHECKED GOOD.