As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPARKS WERE COMING FROM NR 1 PROP WHEN DE-ICE WAS ENGAGED HAD LARGE BURN MARK ON BOOT. MX R & R THE LT PROPELLER IAW TASKCARD 1900-6110.00. THE OPS CHECK AND LEAK CHECK WERE GOOD PN HC-E4A-3J SN ON HJ2050, SN OFF HJ1695. RII INSPECTIONS WAS SATISFACTORY IAW TASKCARD 1900-6110.00.