What was found
DURING THE RETURN FLIGHT FROM UMC, THE PILOT SWITCHED ON THE CABIN VENT BLOWER. THE MEDICAL CREW IMMEDIATELY SMELLED A BURNING SMELL COMING FROM THE VENTS. THE PILOT TURNED THE VENT BLOWER OFF & THE SMELL DISSIPATED. THE PILOT PERFORMED A PRECAUTIONARY LANDING AT A NEARBY AIRPORT. AFTER THOROUGH INSPECTION NO DISCREPANCIES WERE NOTED. THE ACFT WAS GND RAN & VENT BLOWER OPERATED WITH NO DEFECTS. ALL CB`S WERE CHECKED, REMOVED PANELS NECESSARY TO INSPECT AVIONICS WIRING WITH NO DEFECTS FOUND. THE ACFT WAS RETURNED TO SERVICE & FLOWN AROUND THE AIRPORT FOR 20 MINUTES WITH NO DEFECTS NOTED.