In the case of an application for EU type-approval of an engine family, if the approval authority determines that, with regard to the selected parent engine referred to in paragraph 2 of this Article, the application submitted does not fully represent the engine family described in the information folder referred to in Article 21, manufacturers shall make available an alternative and, if necessary, an additional parent engine which is considered by the approval authority to represent the engine family.
I gcás iarratas le haghaidh cineálcheadú AE d'aicme inneall, má dheimhníonn an t-údarás ceadúcháin, maidir leis an máthair-inneall dá dtagraítear i mír 2 den Airteagal seo, nach bhfuil an t-iarratas atá curtha isteach ionadaíoch go hiomlán don aicme inneall a bhfuil a tuairisc san fhillteán faisnéise dá dtagraítear in Airteagal 21, déanfaidh monaróirí inneall malartach agus, más gá, máthair-inneall breise a mheasann an t-údarás ceadúcháin é a bheith ionadaíoch don aicme inneall, a chur ar fáil le haghaidh cineálcheadú AE.