"One bad apple spoils the barrel"- Damages Arising from an Unlawful Strike


[Cologne, ] In its judgment of 26 July 2016 (Federal Labour Court 26 July 2016 - 1 AZR 160/14), the Federal Labour Court ruled that the strike against the Frankfurt Airport called by the union that represents air controllers (Gewerkschaft der Flugsicherung - GdF) in the year 2012 was unlawful, and there is now talk of claims for damages in the amount of approximately € 5.2 million due to many flights having to be cancelled because of the strike.

The parties to the dispute were the trade union and the company that operates the Frankfurt Airport (Fraport). There had already been a collective agreement in place between the two parties, but parts of it had been terminated with effect as of the end of the year 2011. The following arbitration resulted in a recommendation that covered not only those aspects of the parts of the collective agreement that had been terminated, but also addressed those parts that had remained in effect. The Federal Labour Court considered the strike called to force acceptance of the recommendation illegal and found that claims for damages were justified, but only in respect of Fraport. The court rejected claims for damages brought by the airlines.

Implications for practice

The decision revolves around the violation of a clause in a collective agreement that prohibits both parties to the agreement from engaging in work stoppages, lockouts etc. The trade union breached that clause by striking to compel acceptance of the arbitration recommendation, which would also have affected that part of the collective agreement that was still in effect and covered by a no-strike clause.

Under established case law, a strike must be viewed in its entirety, which means that a single unlawful measure can make the entire strike illegal: "a bad apple spoils the barrel". The Federal Labour Court leaves no room for making any distinction on the basis of the relative weight of illegal demands since they can hardly be assessed objectively.

Furthermore, Fraport can also not be expected to accept the argument that the union would have gone on strike anyway without demands pertaining to that part of the agreement still subject to the no-strike clause (‘lawful alternative behaviour’). If that had been the case, the different objectives would, as the Federal Labour Court correctly pointed out, have made it a different strike. Acceptance of the argument of lawful alternative behaviour would be tantamount to giving trade unions a license to engage in (partially) unlawful industrial action.


Despite the fact that the decision attracted considerable attention because of the impressive damages claimed, it did not come as a surprise. The Federal Labour Court continued to adhere to its position to the effect that an unlawful demand – in this case due to breach of a no-strike clause, the severity of which is immaterial here – makes the entire strike unlawful, thereby giving the employer legitimate grounds for claiming damages. This decision underscores once again that there are concrete limits to the right to strike anchored in the Basic Law (Grundgesetz) and will in the future discourage unions from promiscuously calling strikes without adequate preparation, not least of all because of the scale of damages at issue and explicit rejection of the argument of legal lawful alternative behaviour that trade unions like to evoke.


 Newsletter Icon

We inform you about current legal developments in the areas relevant to you.

Subscribe to our Newsletter


Einige der von uns gesetzten Cookies dienen dazu, bestimmte Funktionen unserer Webseiten zu ermöglichen, insbesondere zur Steuerung des Cookie-Banners (damit dieses bei Ihren erneuten Besuchen nicht immer wieder angezeigt wird). Diese Cookies enthalten keine personenbezogenen Daten, insbesondere nicht Ihre IP-Adresse. Andere Cookies, die zu Analysezwecken gesetzt werden (siehe hierzu auch den Abschnitt „Web-Analyse-Tools“), helfen uns zu verstehen, wie Besucher mit unseren Webseiten interagieren. Diese Cookies dienen dazu, die Nutzung unserer Webseiten statistisch zu erfassen und zum Zwecke der Optimierung unseres Angebotes auszuwerten. Die Analyse-Cookies werden bis zu 13 Monate gespeichert.

Save Cancel OK Deny tracking Privacy policy