http://www.drivehq.com/file/df.aspx/publish/acarsonline/PublicFolder/aircraft.txt Falcon 2000EX c/n 46 is shown as N10EU (which it is) and N21HE (which it isn't) http://registry.faa.gov/aircraftinquiry/NNumSQL.asp?NNumbertxt=10eu http://registry.faa.gov/aircraftinquiry/NNumSQL.asp?NNumbertxt=21HE Dick