What was found
PILOT REPORTED: ELECTRICAL/SMELL FROM HEATING/DEMISTER SYSTEM.
UPON ARRIVAL AND BRIEFING FROM PILOT OF PROBLEM, HE COULD NOT EXACTLY DETERMINE THE TYPE OF SMELL. JUST ELECTRICAL CAME TO MIND, BUT THE SMELL WASN’T EXACTLY THAT. I HAD REMEMBERED SEEING A DISCREPANCY FOR DEMISTING DUCTS FROM THE HEAVY MAINTENANCE THAT WAS FINISHED UP LAST WEEK (LP 1639965). THE TECHNICIANS HAD REPLACED THE DEMISTING DUCT DUE TO "MOLDED". P/N REPLACED WAS 706A34402237.
DETERMINED NEEDING TO PERFORM ENGINE RUN AND TURN ON HEATING SYSTEM TO DUPLICATE THE SYSTEM AND SMELL IT FOR MYSELF. ONCE HEATING SYSTEM BEGAN TO WARM UP, I COULD SMELL WHAT I DESCRIBE AS A PLASTIC/SEALANT SMELL AND NOTHING OF ELECTRICAL IN NATURE. BASICALLY THE SMELL DETERMINED TO BE THE DEMISTER DUCT WORK BEING NEW AND GOING THRU A HEAT CYCLE TO "BREAK IT IN".
REST OF THE FORM DOES NOT NEED TO BE ACCOMPLISHED AS THIS WAS NOT A PART FAILURE. JUST A FEATURE OF NEW PART SETTLING IN.