🇺🇸 N974AK - Boeing 737MAX 9 - Alaska Airlines ASA472/AS472, Seattle-Tacoma (SEA) to St Louis Lambert (STL) - 3.5 mi away @ 8350 ft, heading E at 316 mph. Spotted 6x before. [11:39:48 PM CDT] #AD928B #N974AK #B39M #ALASKA #ASA472 #AS472 #Landing #Arrival #ADSB #ADSBbot