Tariff classification of aircraft and rail coach parts follows exclusive use and tariff notes, not general-use headings.

Aircraft floor boards and flat panels, being used exclusively as aeroplane parts with no independent use outside that function, were classifiable under Tariff Heading 88.03 and not as general aluminium articles. Honeycomb floor boards and partition panels, being specifically used in rail coaches and unchallenged on that factual basis, were classifiable under Tariff Heading 86.07 rather than the alternative entries proposed by Revenue. Applying Section Note 2 to Section XVII of the Central Excise Tariff Act, 1985, the ruling treated identifiable parts of aircraft and rail coaches as falling within the relevant section headings, with HSN Explanatory Notes supporting that approach. Revenue's challenge failed and the impugned classification was sustained.

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Issues: (i) Whether aircraft floor boards and flat panels were classifiable under Tariff Heading 88.03 as parts of aircraft, or as aluminium articles under alternative tariff entries. (ii) Whether honeycomb floor boards and partition panels were classifiable under Tariff Heading 86.07 as parts of rail coaches, or under the alternative tariff entries proposed by Revenue.

Issue (i): Whether aircraft floor boards and flat panels were classifiable under Tariff Heading 88.03 as parts of aircraft, or as aluminium articles under alternative tariff entries.

Analysis: The goods were found to be used exclusively as parts of aeroplanes and to have no use outside that function. Under Section Note 2 to Section XVII of the Central Excise Tariff Act, 1985, parts covered by Section XVII do not include parts of general use of base metal or similar plastic goods. The goods did not answer that description, and the HSN Explanatory Notes supported their inclusion as aircraft parts.

Conclusion: The aircraft floor boards and flat panels were correctly classified under Tariff Heading 88.03.

Issue (ii): Whether honeycomb floor boards and partition panels were classifiable under Tariff Heading 86.07 as parts of rail coaches, or under the alternative tariff entries proposed by Revenue.

Analysis: These goods were specifically used in rail coaches, and that factual finding was not rebutted. Applying Section Note 2 to Section XVII of the Central Excise Tariff Act, 1985, the goods were treated as parts falling within the relevant heading rather than under the alternative classifications suggested by Revenue. The cited precedents were not applicable because the dispute turned on the tariff notes rather than commercial parlance.

Conclusion: The honeycomb floor boards and partition panels were correctly classified under Tariff Heading 86.07.

Final Conclusion: Revenue's challenge to the classification of both sets of goods failed, and the classification adopted in the impugned order was sustained.

Ratio Decidendi: Goods used exclusively as identifiable parts of aircraft or rail coaches, and not as parts of general use, are classified under the relevant section headings governed by the tariff notes rather than under alternative general-use or residual entries.

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