🇺🇸 N27277 - Boeing 737MAX 8 - United Airlines UAL2321/UA2321, Newark Liberty (EWR) to Phoenix Sky Harbor (PHX) - 5.0 mi away @ 40225 ft, heading WSW at 509 mph. Spotted 16x before. [09:31:16 PM CDT] #A2B157 #N27277 #B38M #UNITED #UAL2321 #UA2321 #ADSB #ADSBbot