The Boeing Company delivered complete details of its latest offer to negotiators representing 23,000 of the company's engineers. Contract talks between the company and Society of Professional Engineering Employees in Aerospace (SPEEA) are slated to restart. The latest offer in the four-year agreement would increase raises for professional workers by 5% in each of the new contract's first two years, and 4% in each of the remaining two years.

Technicians would get 4% annual raises. Health care and retirement benefits, among other contract provisions, would remain unchanged. Last week, the parties had three days of talks in Seattle with federal mediators.

A strike hasn't been authorized by the union, but SPEEA has been conducting strike training. Boeing's engineering operations are expected to come under scrutiny, as the Federal Aviation Administration confirmed that it will review design and production of the 787 Dreamliner following a week that raised concerns about the safety of the new aircraft.