As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT, AN UNUSUAL NOISE WAS HEARD IN CABIN FOLLOWED BY A BURNING ODOR. IAW THE RFM SUSPECTED ELECTRICAL COMPONENTS WERE TURNED OFF. ODOR AND NOISE DISSIPATED AFTER AIR CONDITIONING UNIT TURNED OFF. CONTINUED FLIGHT FOLLOWING PROCEDURES PUBLISHED IN RFM. LANDED AT RECEIVING FACILITY AND NOTIFIED MX. UPON MX INSP AFT BLOWER MOTOR FOR AIR CONDITIONING FOUND TO HAVE FAILED. REPLACED BLOWER MOTOR AND RETURNED TO SERVICE.