As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN TURNING UP COCKPIT PACK HEAT YOU GET AN OILY SMELL. FLIGHT ATTENDANT REPORTED SLIGHT HAZE IN CABIN. TURNED HEAT DOWN PROBLEM WENT AWAY. MAINTENANCE OPERATED PACK ON FULL WARM FOR THIRTY MINUTES. NO PROBLEMS NOTED. NO PARTS REPLACED.