AN OIL COOLER USED TO REMOVE SURPLUS HEAT FROM AN AIRCRAFT ENGINE. IT IS MADE OF AN ALUMINIUM CORE ASSEMBLY WITH AN OIL RETURN PAN ON ONE END AND AND AN OIL INLET/OUTLET MANIFOLD ON THE OTHER END. THE CORE ASSEMBLY HAS AN ATTACHMENT MOUNTING FLANGE WELDED TO THE COOLING AIR OUTLET SIDE. THE CORE HAS FINS, WHICH ARE SEPARATED BY TUBE PLATES TO FORM AIR AND OIL PASSAGES RUNNING PERPENDICULAR TO EACH OTHER THROUGH THE COOLER.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8419 - MACHINERY, PLANT OR LABORATORY EQUIPMENT, WHETHER OR NOT ELECTRICALLY HEATED (EXCLUDING FURNACES, OVENS AND OTHER EQUIPMENT OF HEADING 8514), FOR THE TREATMENT OF MATERIALS BY A PROCESS INVOLVING A CHANGE OF TEMPERATURE SUCH AS HEATING, COOKING, ROASTING, DISTILLING, RECTIFYING, STERILISING, PASTEURISING, STEAMING, DRYING, EVAPORATING, VAPORISING, CONDENSING OR COOLING, OTHER THAN MACHINERY OR PLANT OF A KIND USED FOR DOMESTIC PURPOSES; INSTANTANEOUS OR STORAGE WATER HEATERS, NON-ELECTRIC GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 8419 50 - HEAT-EXCHANGE UNITS CN CODE 841950 80 OTHER THAN HEAT EXCHANGE UNITS MADE OF FLUOROPOLYMERS AND WITH INLET AND OUTLET TUBE BORES WITH INSIDE DIAMETERS MEASURING 3 CM OR LESS TARIC 84195080 90 - OTHER THAN FOR USE IN CIVIL AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH:- HARMONIZED SYSTEM EXPLANATORY NOTES (HSEN) (I) (B) TO HEADING 84.19 COMBINED NOMENCLATURE EXPLANATORY NOTES (CNEN) TO 8419 50 00