As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURNING CRUISE OPERATION CREW EXPERIENCED SMOKE IN THE COCKPIT 139 NM FROM. DECLARED AN EMERGENCY AND PERFORMED EMERGENCY PROCEDURES, SMOKE DISAPPATED AND ORDOR FADED, AIRCRAFT CONTINUED AND LANDED WITHOUT INCIDENT. INSPECTED AIRCRAFT FOR ELECTRICAL PROBLEMS, FOUND GASPER MOTOR TO BE AT FAULT. REMOVE AND REPLACED GASPER MOTOR OPS CHECK GOOD. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.