🇺🇸 N8739L - Boeing 737MAX 8 - Southwest Airlines SWA252/WN252, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.7 mi away @ 7200 ft, heading SW at 315 mph. Spotted 92x before. [04:58:00 PM CDT] #AC0519 #N8739L #B38M #SOUTHWEST #SWA252 #WN252 #TakingOff #Departure #ADSB #ADSBbot