Striking workers' rejection of planemaker Boeing's latest contract offer has created a fresh threat to operations at aerospace suppliers such as family-run Independent Forge.

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.

Before it can get on the long path to recovery, the aerospace giant needs to get workers back in its factories.