Any insight on the 20,000 feet plunge of UA949 today? (likely bad reported data)
May 6, 2015, 8:04 pm
#1
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Any insight on the 20,000 feet plunge of UA949 today? (likely bad reported data)
Hi Guys, I came across the track log of UA949 today. It looks scary to me the 20000 feet plunge happened in minutes at around 2pm. Here is the track log linkhttp://flightaware.com/live/flight/U.../KORD/tracklogPlease shed some light on this, I cant imagine what happened on the deck...
May 6, 2015, 8:14 pm
#2
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Hi Guys, I came across the track log of UA949 today. It looks scary to me the 20000 feet plunge happened in minutes at around 2pm. Here is the track log linkhttp://flightaware.com/live/flight/U.../KORD/tracklogPlease shed some light on this, I cant imagine what happened on the deck...
- It plunged 20,000 feet, but then also managed to regain those 20,000 feet within mere seconds
- The data is wrong
May 6, 2015, 8:48 pm
#4
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near certainty it is this
The hint is >10K feet/minute descend followed by a 10K foot/minute climb a few minutes later. Not sure commercial jets can even climb anywhere near that rate. And normal climb rates are 2K or lower.
Maybe we should start a thread on bad data
http://www.flyertalk.com/forum/unite...g-lga-den.html
The hint is >10K feet/minute descend followed by a 10K foot/minute climb a few minutes later. Not sure commercial jets can even climb anywhere near that rate. And normal climb rates are 2K or lower.
Maybe we should start a thread on bad data
http://www.flyertalk.com/forum/unite...g-lga-den.html
May 6, 2015, 8:50 pm
#5
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Assuming the data is right it was down low for about 6 mins, more than mere seconds. Curious if its a data issue or the plane ran into problems. I also wonder if it was going to divert due to weather or for some other reason as the plunge occurred around Toronto.
May 6, 2015, 9:27 pm
#6
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Wed 01:58:42 PM 48.3833 -77.1833 233° Southwest 430 495 38,000 -10,314 Level Montreal Center
Wed 01:59:43 PM 43.6833 -76.6833 176° South 440 506 17,200 -11,603 Descending Toronto Center
Within one minute, the flight would have dropped 20,000 feet, changed direction substantially, and traveled 326 (statute) miles:
http://www.gcmap.com/mapui?P=48.3833...33+N+76.6833+W
Now, you could argue that the first two are possible. The third clearly is not. This is simply some bad data from the Toronto center.
May 6, 2015, 9:45 pm
#7
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Looks like bad data from Toronto Center.
The Canadians have had a hard time correctly identifying aircraft lately when transiting between centers. I think someone between them and us is mixing up the SSR transponder codes.
We're correctly filtering out most of them, but some slip through.
The Canadians have had a hard time correctly identifying aircraft lately when transiting between centers. I think someone between them and us is mixing up the SSR transponder codes.
We're correctly filtering out most of them, but some slip through.
May 7, 2015, 7:03 pm
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May 7, 2015, 9:21 pm
#13
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