What was found
ON APPROACH AFTER GEAR EXTENSION, CREW EXPERIENCED A VERY STRONG RUBBER BURNING OR WIRE INSULATION TYPE SMELL. AIRCRAFT LANDED WITHOUT INCIDENT. UPON INSPECTION MAINTENANCE FOUND POTTING ON FORWARD BEVERAGE CONTAINER MELTED TO BOTTOM PIN. REMOVED AND REPLACED BEVERAGE CONTAINER. CHECK BLEED AIR SYSTEM FOR ALL TEMPERATURE MODES FOR BOTH CONTROL PANEL. CHECKED AIRCRAFT ELECTRICAL POWER SOURCES (AC/DC/TRANSFORMER AND RECTIFIER UNITS/INVERTERS). PERFORMED OPERATIONAL CHECK OF ALL AIRCRAFT LIGHTING SYSTEM. NO DEFECTS AND NO UNUSUAL SMELL NOTED.