not sure what the occasion was but SAM939 left Topeka KS today and is flying back to Joint Base Andrews by the look of it. https://globe.adsbexchange.com/?icao=adfeb8
well, SAM is Special Air Mission. more than likely was a Senator and entourage or Congressman/woman and their entourage, State Department.... quite a few things trigger up as SAM. Executive as a designation would be President or VP's family members. AF2 or NA would be the VP
