Case C-159/18: Judgment of the Court (Fourth Chamber) of 26 June 2019 (request for a preliminary ruling from the juge de paix du troisième canton de Charleroi — Belgium) — André Moens v Ryanair Ltd (Reference for a preliminary ruling — Air transport — Regulation (EC) No 261/2004 — Article 5(3) — Compensation to passengers in the event of denied boarding and of cancellation or long delay of flights — Scope — Exemption from the obligation to pay compensation — Concept of ‘extraordinary circumstances’ — Presence of petrol on an airport runway)