Judgment of the Court (Seventh Chamber) of 19 May 2022.#Istituto nazionale per l'assicurazione contro gli infortuni sul lavoro (INAIL) and Istituto nazionale della previdenza sociale (INPS) v Ryanair DAC.#Reference for a preliminary ruling – Migrant workers – Social security – Legislation applicable – Regulation (EEC) No 1408/71 – Article 14(2)(a)(i) and (ii) – Regulation (EC) No 883/2004 – Article 11(5) – Article 13(1)(a) and (b) – Concept of ‘operating base’ – Flight and cabin crew – Workers employed in the territory of two or more Member States – Connecting factors.#Case C-33/21.