🇺🇸 N647UA - Boeing 767 322ER/W - United Airlines UAL21/UA21, Amsterdam Schiphol (AMS) to George Bush Intcntl/Houston (IAH) - 6.5 mi away @ 40250 ft, heading SSW at 529 mph. Spotted 14x before. [02:54:14 PM CDT] #A880FF #N647UA #B763 #UNITED #UAL21 #UA21 #ADSB #ADSBbot