Instructions for continuing airworthiness, issued by type certificate holders, supplementary type certificate holders, any other organisation required to publish such data by Part-21 and in the case of aircraft or components from third countries the airworthiness data mandated by the authority responsible for the oversight of the aircraft or component;
navodila za stalno plovnost, ki so jih izdali nosilci certifikata tipa, nosilci dodatnega certifikata tipa in katera koli druga organizacija, ki mora take podatke objavljati v skladu z Delom 21, ter v primeru zrakoplova ali komponent iz tretjih držav, podatki o plovnosti, ki jih je določil organ, odgovoren za pregled nad delovanjem zrakoplova ali komponente.