🇺🇸 N323RM - Boeing 737MAX 8 - American Airlines AAL3191/AA3191, Ronald Reagan Washington Ntl (DCA) to Phoenix Sky Harbor (PHX) - 5.2 mi away @ 37750 ft, heading W at 505 mph. Spotted 16x before. [06:09:39 PM CDT] #A37AF8 #N323RM #B38M #AMERICAN #AAL3191 #AA3191 #ADSB #ADSBbot