Such aircraft may also be maintained, or its design may be modified, in other Member States, provided that such maintenance activities and such design modifications are carried out under the oversight of the Member State where the aircraft is registered and in accordance with procedures established in the national law of that Member State.
Chomh maith leis sin féadfar aerárthach mar sin a chothabháil nó féadfar a dhearadh a mhodhnú, i mBallstát eile, ar choinníoll go ndéantar na gníomhaíochtaí cothabhála sin agus na modhnuithe sin faoi mhaoirseacht an Bhallstáit ina bhfuil an t-aerárthach cláraithe agus i gcomhréir leis na nósanna imeachta arna mbunú i ndlí náisiúnta an Bhallstáit sin.