NEW YORK — The union representing Boeing factory workers who are currently on strike in the Pacific Northwest said contract talks “broke off” with the company after their latest bargaining session. In an update posted on social media platforms X and Facebook, a regional district of the International Association of Machinists and Aerospace Workers asserted late Friday that Boeing “would not engage substantively” on key issues important to members — such as higher pay — and didn’t budge on calls to restore a defined-benefit pension that was axed 10 years ago. No further negotiation dates were scheduled after Friday’s session led by federal mediators, IAM District 751 said.