Court of Justice (Third Chamber) 17 April 2018, C-195/17 (Helga Krüsemann and Others v TUIfly GmbH.)

JUDGMENT OF THE COURT (Third Chamber) 17 April 2018 ( *1 ) ( i ) (References for a preliminary ruling — Transport — Common rules on compensation and assistance to passengers in the event of denied boarding and of cancellation or long delay of flights — Regulation (EC) No 261/2004 — Article 5(3) — Article 7(1) — Right to compensation — Exemption — ‘Extraordinary circumstances’ — ‘Wildcat strike’)