A Tennessee witness at Knoxville reported watching a fast moving, disc-shaped object, according to testimony in Case 82433 from the Mutual UFO Network (MUFON) witness reporting database.
The witness was at work and looking through windows facing south at 4:05 p.m. on February 26, 2017.
“I saw a silver disc come zooming by heading from northeast to southwest almost directly towards McGhee-Tyson Airport, which is class B airspace at an estimated 350 mph and 3,000-3,500 feet,” the witness stated. “A few minutes later, I saw an airliner descending from the south to north on downwind leg of landing pattern for the airport at one-third the speed of object. I am ex-Navy, having served aboard a helicopter carrier and do have a private pilot's license.”
Tennessee MUFON Field Investigator Leonteen Connolly closed this case as an Unknown UAV.