"SEATTLE-AREA MEMBERS of the International Association of Machinists and Aerospace Workers have filed at least 20 unfair labor practice charges against Boeing and the union’s international leadership. Most have been against the leadership."

If I'm reading the post correctly, the charges against Boeing are for telling union members that failure to vote for the contract would mean 777X manufacturing would be moved out of Washington state. The charges against union leadership were for allowing the vote at a time when members were more likely to vote in favor of the contract.