🇺🇸 N556UW - Airbus A321 231 - American Airlines AAL3277/AA3277, Chicago O'Hare (ORD) to Phoenix Sky Harbor (PHX) - 3.9 mi away @ 31750 ft, heading WSW at 497 mph. Spotted 15x before. [10:45:29 PM CDT] #A7178C #N556UW #A321 #AMERICAN #AAL3277 #AA3277 #ADSB #ADSBbot