🇺🇸 N28LT - Textron Aviation Citation CJ4 Gen2 - Koch Aviation LLC N28LT, Columbia Regional (COU) to Washington Dulles (IAD) - 4.9 mi away @ 32250 ft, heading E at 539 mph. Spotted once before. [01:52:28 PM CDT] #A2CCAE #N28LT #C25C #N28LT #ADSB #ADSBbot