As a basic premise, the lessor should determine whether it plans to proceed by judicial or non judicial remedies.
Certainly, if a lessor believesn that an airport authority may have a right to
arrest/detention under Article 39, and if the lessor proceeds by judicial remedies, then it may wish to proceed as quickly as possible to initiate the action in the local court of a law that will recognize that action as giving the lessor priority.
It is possible under local law that a lessor will be deemed to have ‘already availed itself ’ of its enforcement remedies by virtue of such court action, even if the court has not actually issued an order directing the return of the aircraft object
Thus, consultation with local counsel is paramount to determine the laws of priority under the Contracting State and of course to aid in the practical issues of communicating with airport authorities