The ground staff of KLM will strike on Wednesday between 1 p.m. and 5 p.m., FNV trade union reports Monday. It is therefore the third time in two weeks that the employees have to put down the work.

The talks between the unions and KLM that continued last week ended in nothing. KLM then made a wage offer of 7 percent (spread over two years and nine months), while the unions demand an annual increase of 4 percent.

The unions believe, among other things, that KLM employees must meet, because "heavy rosters" prevent them from taking on a job other than the 75 percent that society offers them.

"As a result, these employees have a very low income, while they are deployed on the heaviest services," says Jan van den Brink of FNV. The union also wants more employees to be employed. Fifteen thousand people fall under the collective labor agreement for ground personnel.

At the beginning of this month, several hundred members of the FNV had already left work twice. This led to dozens of canceled and delayed flights. Travelers also had to wait longer for their luggage.