The Dutch arm of Air France-KLM is planning to slash 7,500 jobs – equivalent to a quarter of its workforce – largely through outsourcing.

The move is expected to be announced tomorrow with the release of Air France-KLM’s quarterly earnings, Reuters quoted Dutch newspaper Algemeen Dagblad as saying.

The publication cited the head of the trade union for airline personnel in the Netherlands, De Unie.

KLM hopes the measure will help it cut €4.4 billion in outstanding debt by reducing costs.

Air France-KLM’s plans to grow its budget brand across Europe angered pilots at the French arm of the business, who went on strike for two weeks in September, costing the company some €500 million.

The airline is expected to post a 6% decline in revenue and 15% higher net profit of €166 million for the third quarter, according to analysts polled for Reuters.