Artikel 8

A Contracting State in whose territory an aircraft is constructed and from which it is exported to another Contracting State that subsequently provides that aircraft with a valid certificate of airworthiness pursuant to Article 2 of this Agreement, shall:
(a) communicate to all other Contracting States particulars of mandatory modifications to, and mandatory inspections of, that type of aircraft which may at any time be prescribed by it; and
(b) on request, provide, as far as practicable, to any Contracting State information and advice on: (i) the conditions on which the certificate of airworthiness was originally issued for that aircraft; and
(ii) major repairs which cannot be dealt with by the repair schemes included in the maintenance manual relating to that type of aircraft, or by the fitment of spare parts.
(i) the conditions on which the certificate of airworthiness was originally issued for that aircraft; and
(ii) major repairs which cannot be dealt with by the repair schemes included in the maintenance manual relating to that type of aircraft, or by the fitment of spare parts.