SEATTLE (AP) - Machinists union leadership has called for a strike after deciding Boeing's final contract offer isn't good enough. Boeing presented its third and final contract proposal on Thursday, calling for an 11 percent raise and 3 percent cost-of-living adjustment.

The union covers more than 27,000 Boeing workers in Washington, Oregon and Kansas. The call for a strike comes as Chicago-based Boeing tries to keep up with a backlog of plane orders and avoid more penalties caused by production delays of its next-generation passenger jet.