As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT REPORTED DURING A FLIGHT FROM KE91 TO KINW, DURING CRUISE PORTION OF FLIGHT, AN ELECTRICAL BURNING SMELL AND FUMES WERE NOTED IN THE COCKPIT AND CABIN, WITH THE CREW OBSERVING LIGHT SMOKE. THE AIRCRAFT RETURNED TO THE AIRPORT OF ORIGIN AND MADE AN UNSCHEDULED LANDING. MAINTENANCE REPLACED THE BLOWER MOTOR P/N 90-384031-1 AND RETURNED THE AIRCRAFT TO SERVICE AFTER A TEST FLIGHT.