🇺🇸 N7731A - Boeing 737NG 76N/W - Southwest Airlines SWA1071/WN1071, Baltimore/Washington Thurgood Marshall (BWI) to St Louis Lambert (STL) - 3.7 mi away @ 3475 ft, heading NNE at 241 mph. Spotted 83x before. [04:05:04 PM CDT] #AA76A8 #N7731A #B737 #SOUTHWEST #SWA1071 #WN1071 #Landing #ADSB #ADSBbot