Article 20 Montreal Convention

Article 20 of the Montreal Convention (Convention For the Unification of Certain Rules for International Carriage by Air) is titled Exoneration. It is under Chapter III (Liability of the Carrier and Extent of Compensation for Damage).

If the carrier proves that the damage was caused or contributed to by the negligence or other wrongful act or omission of the person claiming compensation, or the person from whom he or she derives his or her rights, the carrier shall be wholly or partly exonerated from its liability to the claimant to the extent that such negligence or wrongful act or omission caused or contributed to the
damage. When by reason of death or injury of a passenger compensation is claimed by a person other than the passenger, the carrier shall likewise be wholly or partly exonerated from its liability to the extent that it proves that the damage was caused or contributed to by the negligence or other wrongful act or omission of that passenger. This Article applies to all the liability provisions in this Convention, including paragraph 1 of Article 21.

See also: Article 19 Montreal Convention