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