Boeing's leaders have few options as the Machinists' strike extends. A settlement is needed to stave off further financial distress and damage to suppliers.

Boeing’s largest union rejected a tentative labor contract on Wednesday by a wide margin, extending a damaging strike and adding to the mounting financial problems facing the company, which hours earlier had reported a $6.

The International Association of Machinists and Aerospace Workers, representing 33,000 striking machinists at Boeing, voted to reject the aerospace giant's latest contract offer, extending a strike that has halted key Boeing production lines.