Case C-589/20: Judgment of the Court (Third Chamber) of 2 June 2022 (request for a preliminary ruling from the Landesgericht Korneuburg — Austria) — JR v Austrian Airlines AG (Reference for a preliminary ruling — Air transport — Montreal Convention — Article 17(1) — Liability of air carriers for death or injury sustained by passengers — Concept of ‘accident’ causing death or injury — Bodily injury suffered during disembarkation — Article 20 — Exoneration of air carrier from liability — Concept of ‘damage suffered caused or contributed to by the negligence or other wrongful act or omission of that injured passenger’ — Fall of passenger not holding on to the handrail of a mobile disembarkation stairway)