Invalidity of contractual provisions
Any contractual provision concluded before the occurrence of the incident which has caused the death of or personal injury to a passenger or the loss of or damage to his luggage, purporting to relieve the carrier of his liability towards the passenger or to prescribe a lower limit of liability than that fixed in this Convention except as provided in paragraph 4 of Article 8, and any such provision purporting to shift the burden of proof which rests on the carrier, or having the effect of restricting the option specified in paragraph 1 of Article 17, shall be null and void, but the nullity of that provision shall not render void the contract of carriage which shall remain subject to the provisions of this Convention.