Approval of the deal with 38 percent raises over four years is a key step toward recovery after Boeing suffered billions in losses from the work stoppages and safety problems.

Striking machinists accepted a new contract raising wages by 39 percent, but enduring bitterness will complicate Boeing’s efforts to rebuild its battered corporate culture and flawed production process.

Seattle — Unionized machinists at Boeing voted Monday to accept a contract offer and end their strike after more than seven weeks, clearing the way for the aerospace giant to resume production of its bestselling airliner and generate much-needed cash.