Debt-ridden plane-maker Boeing (NYSE:BA) has reportedly delivered layoff notices to more than 400 members of its professional aerospace labor union, as part of a larger workforce reduction plan amid ongoing financial challenges.

Boeing plans to lay off over 400 aerospace union members amid financial challenges, following a machinists' strike and production slowdowns.

Boeing has delivered layoff notices to more than 400 members of its professional aerospace 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.

Boeing has laid off more than 400 members of its professional aerospace labor union, part of companywide cuts that will reach 10% of Boeing's workforce.

According to The Seattle Times, the pink slips were distributed to members of the Society of Professional Engineering Employees in Aerospace, or SPEEA, last week. The employees will continue to be paid until the middle of January.

Boeing has issued layoff notices to over 400 employees represented by the Society of Professional Engineering Employees in Aerospace (SPEEA). This action is part of a larger workforce reduction plan,

Boeing announced in October that it planned to cut 10% of its workforce, about 17,000 jobs, in the coming months. CEO Kelly Ortberg told employees the company must “reset its workforce levels to align