Boeing and the union representing some 23,000 of its engineers and technical workers are resuming negotiations over a new contract Thursday.
The union, the Society of Engineering Employees in Aerospace, overwhelmingly rejected an initial contract proposal from Boeing early this month.
The union said it hopes the two sides will make progress this week.
During a session last week, said the union, SPEEA negotiators asked extensive questions about why Boeing had made some of its proposals, but didn’t propose any significant changes yet.
The union presented its own proposal early this summer.
The contract between the union and Boeing expired early this month after the vote, but workers continue to labor at the aircraft maker under the terms of the old agreement.
The union didn’t ask its members to authorize a strike when they considered the Boeing proposal.