The struggles at Boeing continue as the company plans to lay off more than 400 aerospace labor union members — just weeks after ending a massive strike involving a separate union. Layoff notices went out last week to members of the Society of Professional Engineering Employees in Aerospace,

Boeing says it will be several weeks before it fully resumes building passenger planes, as factory workers return following a strike that lasted nearly two months.

Boeing received its first order after reaching a deal with striking machinists, but it still faces a difficult road ahead.

Boeing said it will lay off about 220 workers at its SC factories, nearly all of them at sites that build engine components, cabin parts and the Dreamliner jet.

As Boeing's Machinists return after eight weeks on strike, experts predict the work stoppage strained finances for the company and region, but likely ended before the cost got prohibitive.

A week after Boeing machinists ended an almost two-month strike, the aerospace manufacturer said Tuesday that October saw it deliver the smallest number of planes in years.

The aerospace company said last month it planned to cut 10 percent of its workforce, about 17,000 jobs, in the coming months.

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