Sixty-four percent of those who voted cast a ballot to reject the proposed deal, which Boeing had hoped would be enough to end a nearly six-week walkout.

Thousands of Boeing aircraft machinists have rejected a contract offer for the second time in less than two months, meaning a strike that has halted airplane production at the company’s factories around the Puget Sound region for nearly six weeks will go on.

Striking Boeing Machinists voted Wednesday night to reject a tentative deal with the struggling aerospace giant and continue its nearly six-week strike.