According to the European Flight Compensation Regulation, passengers are entitled to compensation in the event of cancellations and delays. However, the claim does not apply if the air carrier can prove that the cancellation is caused by "extraordinary circumstances" which could not have been avoided even if all reasonable measures had been taken. The question of whether these "extraordinary circumstances" also include strikes by airline staff, which is extremely relevant in practice, is judged differently by the German courts. In any case, the European Court of Justice (ECJ) did not classify a wildcat strike by employees of an airline (TUIfly) as an "extraordinary circumstance". Dr. Thomas Klein has examined the issue in detail in a recent article entitled "Compensation claims under the Flight Compensation Regulation in the event of strike-related cancellation or delay". In the first part of the study, he develops typical case groups taking into account the law on industrial disputes and points out that, the air carriers' staff strikes, contrary to the former case law of the Federal Court of Justice (Bundesgerichtshof), do not generally lead to the loss of compensation. In the second part of the study, he examines the fundamental rights dimension of the problem, which has not yet been adequately captured and appreciated by the case law, and comes to the conclusion that fundamental rights considerations also do not force the elimination of compensation. The article was published in issue 1/2021 of the European Journal of Business Law (EuZW 2021, 23-29).