 Later the same month, the NTSB released its final report into the accident, citing this "non-pertinent conversation" as a contributing factor in the accident.In July 2008, United States District Judge Karl Forester ruled Delta will not be held liable for the crash, because while Comair is a wholly owned subsidiary of the Atlanta-based airline, Comair maintains its own management and policies, and employs its own pilots.In December of the following year, Forester granted a passenger family's motion for "partial summary judgment" determining, as a matter of law, that Comair's flight crew was negligent, and that this negligence was a substantial factor causing the crash of Flight 5191.