July 25 (Reuters) - U.S. District Judge Reed O'Connor

should reject a "sweetheart" plea deal the Justice Department

struck with Boeing ( BA ), relatives of some of the 346 people

killed in two fatal 737 MAX crashes said on Thursday.

Late Wednesday, the planemaker finalized an agreement to

plead guilty to a criminal fraud conspiracy charge and pay at

least $243.6 million after breaching a 2021 deferred prosecution

agreement.

Family members said in a court filing that they will file a

comprehensive objection to the plea deal by next week, arguing

that there are a number of issues including its "outdated and

misleading statement of facts," use of "inaccurate sentencing

guidelines" and "ambiguous restitution commitment" by Boeing ( BA ).