it was a different john roberts. I cant remember all the details but the log entry was for a different plane and different owner but same pilot. It seems like he was a lawyer. Well associated with a university. Maybe Wisconsin. Through an endowment. My memory is sketchy on this
Chief Justice Roberts had a case around the day in question...that day or next day.
John Roberts dean of law close to Eugene Applebaum of the Arbor Drug chain fortune. I think is the connection to the plane.
https://www.ar15.com/forums/general/John-Roberts/5-2371541/