🇺🇸 N17454 - UNITED AIRLINES INC UAL1938/UA1938, Washington Dulles (IAD) to Phoenix Sky Harbor (PHX) - 4.2 mi away @ 36250 ft, heading W at 529 mph. Spotted for first time! [07:25:41 PM CDT]
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Map of the St. Louis area showing the position and track of the aircraft described in the post.