Boeing and the families of the victims of two fatal 737 Max crashes more than five years ago will have to wait to see what punishment the company will face for its misdeeds that preceded the crashes.

A federal judge on Friday pressed U.S. Justice Department officials to justify the terms of Boeing's agreement to plead guilty to fraud in the wake of two fatal 737 MAX crashes but stopped short of ruling on whether to accept the deal.

Boeing admitted to misleading regulators about the aircraft's flight control system, but families of victims reject the plea deal.

Boeing filed a complaint with the NLRB accusing the IAM union of bargaining in bad faith, after negotiations collapsed this week.

The union violated its duty to bargain in good faith by engaging in regressive bargaining, surface bargaining, misrepresenting deal terms and negotiation status to its members and the public, and failing to bring representatives to the bargaining table with the authority to reach an agreement,

Boeing said late on Thursday it filed an unfair labor practice charge with the National Labor Relations Board against the union that represents about 33,000 striking U.S. West Coast factory workers. The planemaker said the International Association of Machinists and Aerospace Workers unit representing the workers had failed to bargain in good faith during the four-week work stoppage.