Boeing Co. has resumed contract talks with leaders of the union representing some 3,200 factory workers in the St. Louis area, after members resoundingly rejected its initial offer and voted to strike.

Boeing's latest contract proposal to its St. Louis machinists union removes a controversial work schedule change, but a key sticking point remains as a potential strike deadline approaches.

Boeing is facing another labor strike just months after resolving a contract dispute with workers in the Pacific Northwest. This stoppage could impact the defense business.