Boeing is making a new offer to the union in hopes of ending a strike now in its second month

Boeing and the union representing striking machinists have negotiated a new contract proposal that would provide bigger pay raises and bonuses in a bid to end a costly walkout that has crippled production of airplanes for more than a month. The International Association of Machinists and Aerospace Workers said early Saturday that it plans to hold a ratification vote on Wednesday. The new offer would not restore a traditional pension plan — a key demand of the 33,000 striking workers — but it would increase the amount of contributions to 401(k) retirement plans that Boeing would match and retain performance bonuses that Boeing wanted to eliminate, the union said.