By bizn_fun 
Lawyer Paul Cassell, who represents some of the families, said he intended to appeal against the ruling.
“We believe that the courts don’t have to stand silently by while an injustice is perpetrated,” he said in a statement.
In his decision on Thursday, Mr O’Connor said the government’s concerns about taking the charge to trial were “unserious”and he did not believe the new deal reached between the government and Boeing would “secure the necessary accountability to ensure the safety of the flying public”.
But he said the government was presumed to be acting in “good faith” and he did not have the authority to override the request.
The Department of Justice (DOJ) defended its agreement, noting that it had met “extensively” with the crash victims’ families, which had expressed “a broad set of views regarding the resolution”.
“Rather than allow for protracted litigation, this agreement provides finality for the victims and requires Boeing to act now,” a spokesperson said in a statement. “We are confident that this resolution is the most just outcome.”
Boeing said it was committed to the agreement struck with the DOJ.
“We are also committed to continuing the significant efforts we have made as a company to strengthen our safety, quality, and compliance programs,” the company said in a statement.