Aircraft de-registration under IDERA is mandatory once lease termination and required documents are shown; export may need lien review.

Where a lease had been terminated after default and a valid IDERA, original IDERA, and priority search material were produced, Rule 30 of the Aircraft Rules required the DGCA to cancel registration and left no room to defer action on equitable or discretionary grounds. The article also explains that asserted non-consensual rights under Articles 39 and 40 of the Convention did not bar de-registration under Article IX of the Protocol; however, export and physical transfer could require a prior administrative determination of whether any operative municipal-law liens actually existed. Immediate de-registration was therefore supported, while export relief depended on that prior lien inquiry.

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Issues: (i) Whether the petitioners were entitled to de-registration of the aircraft on termination of the lease and whether the DGCA was bound to act on the IDERA request; (ii) Whether the existence of non-consensual rights or interests under the Convention could stall de-registration and whether further decision was required on export of the aircraft.

Issue (i): Whether the petitioners were entitled to de-registration of the aircraft on termination of the lease and whether the DGCA was bound to act on the IDERA request.

Analysis: The lease agreements had been terminated after default, the IDERA had been duly lodged, and the petitioners had produced the original IDERA and supporting priority search material. Rule 30 of the Aircraft Rules, 1937, as amended by insertion of sub-rule (7), required cancellation of registration where an IDERA holder applied before expiry of the lease and furnished the stipulated documents. The earlier uncertainty as to the extent of DGCA's discretion was removed by the amendment. In this setting, the DGCA was required to de-register the aircraft and could not defer action on equitable or discretionary considerations.

Conclusion: The petitioners were entitled to de-registration, and the DGCA was directed to de-register the aircraft.

Issue (ii): Whether the existence of non-consensual rights or interests under the Convention could stall de-registration and whether further decision was required on export of the aircraft.

Analysis: The declarations under Article 39 and Article 40 of the Convention distinguished between non-consensual rights having priority under municipal law and registrable non-consensual rights. The Court held that de-registration under Article IX of the Protocol was not defeated merely by the asserted existence of Article 39 liens, but export and physical transfer required the DGCA to first determine whether any such liens actually existed under the relevant municipal law and whether they were operative. Since the DGCA had not examined that question, a decision on export was necessary before that relief could be granted.

Conclusion: The existence of asserted liens did not prevent de-registration, but the prayer for export required a prior decision by the DGCA on liens, if any.

Final Conclusion: The writ petitions succeeded to the extent of securing immediate de-registration, while the claim for export was kept pending for an administrative decision on the existence and operability of any relevant liens.

Ratio Decidendi: Where the conditions under the amended aircraft registration rule and the lodged IDERA are satisfied, the registry authority must cancel registration, and de-registration cannot be refused on broad equitable grounds; however, export relief may depend on a prior determination of any operative priority liens under the applicable municipal law.

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