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Incident: United B737 at Chicago on Mar 19th 2026, lined up with runway edge line #B737 #N15712 #UA-1394
http://avherald.com/h?article=53695c30

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15712 - BOEING 737-724 - United Airlines UAL1842/UA1842, Chicago O'Hare (ORD) to San Antonio (SAT) - 4.4 mi away @ 38300 ft, heading SW at 434 mph. Spotted 14x before. [09:00:00 PM CST] #A0E6C6 #N15712 #B737 #UNITED #UAL1842 #UA1842 #ADSB #ADSBbot

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15712 - Boeing 737NG 724/W - United Airlines UAL1655/UA1655 (YYC-ORD-SAT) - 4.8 mi away @ 36475 ft, heading SW at 455 mph. Spotted 13x before. [08:31:48 PM CST] #A0E6C6 #N15712 #B737 #UNITED #UAL1655 #UA1655 #ADSB #ADSBbot

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ICAO: A0E6C6
Owner: UNITED AIRLINES
Flt: UAL721 N15712 B737 BOS-IAD
Time: 2025-11-27 14:38:14 EST
Min Alt: 11575 ft
Min Dist: 6.2 nm (161° SSE)
Loudness: 0 dB
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa

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ICAO: A0E6C6
Owner: UNITED AIRLINES
Flt: UAL618 N15712 B737 ORD-BOS
Time: 2025-11-27 12:07:00 EST
Min Alt: 9100 ft
Min Dist: 1.02 nm (15° NNE)
Loudness: 0 dB
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15712 - Boeing 737NG 724/W - United Airlines UAL1304/UA1304 (BDL-ORD-DFW) - 4.8 mi away @ 41500 ft, heading SW at 482 mph. Spotted 12x before! [10:07:47 AM CDT] #A0E6C6 #N15712 #B737 #UNITED #UAL1304 #UA1304 #ADSB #ADSBbot

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15712 - Boeing 737NG 724/W - United Airlines UAL1304/UA1304 (BDL-ORD-DFW) - 3.6 mi away @ 27200 ft, heading SW at 537 mph. Spotted 11x before! [09:45:31 AM CDT] #A0E6C6 #N15712 #B737 #UNITED #UAL1304 #UA1304 #ADSB #ADSBbot

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The ACARS reports are looking grim. The pilots are reporting they are going to higher altitudes to avoid choppy flights. They are also sending messages requesting biohazard clean-ups from multiple planes in various areas.

#acars #vdlm2 #n15712

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15712 - Boeing 737NG 724/W - United Airlines UAL537/UA537 (STL-IAH-YYC) - 3.4 mi away @ 9575 ft, heading WSW at 319 mph. Spotted 10x before! [06:08:40 AM CDT] #A0E6C6 #N15712 #B737 #UNITED #UAL537 #UA537 #TakingOff #ADSB #ADSBbot

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