§ 382.31 Refusal of transportation.
(a) Unless specifically permitted by a provision of this part, a carrier shall not refuse to provide transportation to a qualified individual with a disability on the basis of his or her disability.
(b) A carrier shall not refuse to provide transportation to a qualified individual with a disability solely because the person’s disability results in appearance or involuntary behavior that may offend, annoy, or inconvenience crewmembers or other passengers.
(c) A carrier shall not refuse to provide transportation to qualified individuals with a disability by limiting the number of such persons who are permitted to travel on a given flight.
(d) Carrier personnel, as authorized by 49 U.S.C. 44902, 14 CFR 91.8, or 14 CFR 121.533, may refuse to provide transportation to any passenger on the basis of safety, and may refuse to provide transportation to any passenger whose carriage would violate the Federal Aviation Regulations. In exercising this authority, carrier personnel shall not discriminate against any qualified individual with a disability on the basis of disability and their actions shall not be inconsistent with the provisions of this Part. In the event that such action is inconsistent with the provisions of this Part, the carrier shall be subject to remedies provided under § 382.65.
(e) When a carrier refuses to provide transportation to any person on a basis relating to the individual’s disability, the carrier shall specify in writing to the person the basis for the refusal, including, where applicable, the reasonable and specific basis for the carrier’s opinion that transporting the person would or might be inimical to the safety of the flight. This written explanation shall be provided within 10 calendar days of the refusal of transportation.
If Air France is found to be in violation of the law and they fail to remedy the situation, their common carrier status should be revoked.
That clause could be their claim. She is incapable of evecuating herself from the aircraft and her wheelchair could block the evacuation of other people.