As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WO 207043 NR 1 FLIGHT 8737/ DISCREPANCY: DURING ENGINE START, SPARKS AND ELECTRICAL SMELLING SMOKE IN COCKPIT WERE DETECTED. ENGINE WAS SHUTDOWN. CORRECTIVE ACTION: MAINTENANCE TROUBLESHOT AND FOUND PROP ANTI-ICE CONTACTOR AND ASSOCIATED POWER WIRES BURNT. REPLACED THE 1DH PROP DEICE CONTACTOR AND REPLACED WIRES. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.