Opinion of Advocate General Tanchev delivered on 19 December 2018.#André Moens v Ryanair Ltd.#Request for a preliminary ruling from the juge de paix du troisième canton de Charleroi.#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.#Case C-159/18.