As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR CONDITIONING RELAY MODULE FAILS AND LATCHES THE COMPRESSOR ON AS SOON AS BATTERY POWER IS ON. ALSO THE CONDENSER FAN IS FAILED AND WILL NOT COOL THE CONDENSER WHICH CREATES A OVER PRESSURE PROBLEM IN THE AC SYSTEM. WHEN THIS OCCURS THE COMPRESSOR CAN FAIL OR A LINE, AND RUPTURE SPRAYING FREON OIL VAPOR IN THE CABIN OR ENGINE COMPARTMENT WHICH COULD CAUSE A FIRE. ALSO FREON IS TOXIC TO INHALE. IN THIS AIRCRAFT THE COMPRESSOR FAILED AND SPAYED OIL AND CONTAMINATES IN THE ENGINE COMPARTMENT WHICH CAUSED A BURNING SMELL.