Their widows sued the United States under the Federal Tort Claims Act .
Their widows moved under Rule 34 of the Federal Rules of Civil Procedure for production of the Air Force 's accident investigation report and statements made by surviving crew members during the investigation .
Their widows sued the United States under the Federal Tort Claims Act and moved under Rule 34 of the Federal Rules of Civil Procedure for production of the Air Force 's accident investigation report and statements made by surviving crew members during the investigation .