Whereas industrial action normally occurs relatively few times a year and for a limited duration, the impact of each event can create major traffic disruptions which are particularly challenging for the European network. Generally, ATM strikes result in a reduction in staff resources to control air traffic in the European ATM network. To ensure safety as a matter of priority, ATM strikes inevitably result in a reduction of capacity in the airspace of the ACC/State concerned and also in congestion in the airspace of neighbouring States/ACCs.
ATM related strikes are today subject to a close monitoring by the EUROCONTROL Network Manager with the contribution of all operational stakeholders. Coordinated management takes place in order to mitigate their impact. However, they cannot all be addressed in the same way, as their level of predictability, their impact and their nature can differ.