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

🇺🇸 N343SY - Boeing 737MAX 8 - American Airlines AAL2752/AA2752, Dallas-Fort Worth (DFW) to Ronald Reagan Washington Ntl (DCA) - 4.8 mi away @ 36900 ft, heading NE at 561 mph. Spotted 10x before! [09:02:47 PM CDT] #A3CA1A #N343SY #B38M #AMERICAN #AAL2752 #AA2752 #ADSB #ADSBbot