🇺🇸 N8776L - Boeing 737MAX 8 - Southwest Airlines SWA1659/WN1659, Baltimore/Washington Thurgood Marshall (BWI) to Phoenix Sky Harbor (PHX) - 5.2 mi away @ 39325 ft, heading W at 485 mph. Spotted 75x before. [09:37:19 PM CDT] #AC138C #N8776L #B38M #SOUTHWEST #SWA1659 #WN1659 #ADSB #ADSBbot