The pilots' union VC has announced a 24-hour strike at the Lufthansa subsidiary Eurowings for Thursday.

The labor dispute at the low-cost airline lasted from 00:00 to 23:59, the Cockpit Association (VC) announced on Tuesday.

The negotiations on the general collective agreement at Eurowings have failed.

Eurowings criticized the announced strike as disproportionate and irresponsible.

At first it was not known how many flights were affected by the strike.

A company spokesman said the flight operations of Eurowings Germany would be on strike, but not those of Eurowings Europe.

So far, the airline has planned 516 flights for Thursday.

A “significant part” of this will take place, Eurowings explained, without giving any details.

The VC is concerned with the conflict about better working conditions.

A central requirement was the relief of the employees, for example by reducing the maximum flight duty times and increasing the rest periods.

There have been no adjustments since 2015.

"Ten rounds of negotiations, two of them after the clear signal of the ballot, have not led to any significant rapprochement," the union said.

Eurowings personnel manager Kai Duve said that despite two salary increases of well over ten percent in the next four months, the union is demanding 14 additional days off a year and a reduction in the maximum weekly working time by five hours.

"In times when millions of people are afraid of a cold winter and the next heating bill, that's not just excessive.

The demands would also make 20 percent of our flights impossible and thus jeopardize the future viability of flight operations and its employees," the manager stated.

Eurowings already offers employment conditions that are among the best among comparable European airlines.

In the negotiations for more free time, many other reliefs were offered.

However, the union said the workload had increased significantly.

"The employer regularly exhausts the working time of the colleagues up to the maximum permitted, this cannot be a permanent situation." One regrets the restrictions for the passengers.

However, due to the lack of accommodation on the part of the management, the only option left at the moment is to enforce the demands with a labor dispute.

"We are open to talks about how we can achieve reasonable working hours for Eurowings employees in the long term," said Marcel Gröls, Chairman of the Cockpit Association.

So far, however, it has not been possible to agree on a common path with the employer.

"It is not enough,