STORY: Boeing in a filing Monday said it had sent layoff notices to over 2,500 workers in the states of Washington, Oregon, South Carolina and Missouri.

It’s part of the debt-ridden planemaker’s plan to trim 17,000 jobs globally, or 10% of its workforce.

Those who were let go were mostly engineers, technicians and non-union workers. the bulk of them in Washington State, where nearly 2,200 workers received notices.

Layoffs varied between sections:

An engineer in Boeing Defense, Space & Security told Reuters all but two or three members of his 12-person team were let go.

Another said she was the only one in her roughly 20-person team to receive a layoff notice.

Both said they provide vital support for production and design engineers.

The company told affected workers they will stay on Boeing’s payroll until January, to comply with a federal 60-day notice period rule.

News of cuts in November was widely expected – Boeing had said it started issuing notices last week – and another round is expected in December.

The notices come as Boeing aims to restart production of its best-selling 737 MAX jet following a weeks-long strike.

The stoppage ended earlier this month, having crippled much of the firm’s airplane output.