Boeing has delivered layoff¹ notices to more than 400 members of its professional aerospace² labor union, part of thousands of cuts planned as the company struggles to recover from financial and regulatory trouble as well as an eight-week strike by its machinists’ union.

The pink slips went out last week to members of the Society of Professional Engineering Employees in Aerospace, or SPEEA. The workers will remain on the payroll³ through mid-January.

Boeing announced in October that it planned to cut 10% of its workforce⁴, about 17,000 jobs, in the coming months. CEO Kelly Ortberg told employees the company must “reset⁵ its workforce levels to align⁶ with our financial reality.”

Of those 438 workers, 218 are members of SPEEA’s professional unit, which includes engineers and scientists. The rest are members of the technical unit, which includes analysts⁷, planners, technicians and skilled tradespeople.