Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N738K - Bombardier Learjet 75 - Koch Industries Inc N738K - 5.2 mi away @ 38125 ft, heading E at 575 mph. Spotted 5x before. [01:08:29 PM CDT] #A9E9A4 #N738K #LJ75 #N738K #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N738K - Bombardier Learjet 75 - Koch Industries Inc N738K - 5.0 mi away @ 42900 ft, heading W at 408 mph. Spotted 4x before. [11:10:52 AM CST] #A9E9A4 #N738K #LJ75 #N738K #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N738K - Bombardier Learjet 75 - Koch Industries Inc N738K - 5.8 mi away @ 43325 ft, heading E at 534 mph. Spotted 3x before! [01:39:52 PM CDT] #A9E9A4 #N738K #LJ75 #N738K #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N738K - Bombardier Learjet 75 - Koch Industries Inc N738K - 5.6 mi away @ 43050 ft, heading W at 437 mph. Spotted 2x before! [03:12:13 PM CST] #A9E9A4 #N738K #LJ75 #N738K #ADSB #ADSBbot