What was found
AFTER GEAR DOWN NOTED BURING PLASTIC SMELL ON FLIGHT DECK WITH MINOR SMELL NOTED IN CABIN. RAN PACK 1 AND PACK 2 AND OPERATED FLAPS, TRIMS GUST LOCK, WINDSHIELD HEAT, LIGHTS AND RADIOS. FOUND OIL SMELL PRESENT WHILE ONLY OPERATING PACK 1. PAC 1 CURRENTLY ON THE MEL.