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Bitesized UFOs #060: Airliner Crew See Piloted UFO, February 1973
14th February 1973 - the pilot & co-pilot of a DC-8 cargo airliner flying from St Louis to Dallas encountered a strange object that manoeuvred around their own aircraft with ease. More alarmingly, they observed shadowy beings in a transparent dome structure mounted on top of the UFO. At one point, the object moved to within an estimated 300 feet of the DC-8. After landing, a report was filed and USAF officers later interviewed the crew, despite public proclamations three years earlier that the air force was getting out of the UFO investigation business.
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https://www.youtube.com/watch?v=lyFAXJGAkKY