BTK
Region: US
Monday 02 November 2026 00:21:40 GMT
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Kausar B :
Icing and moderate turbulence lead to a phenomenon called mach tuck. It is common in Learjet 60’s and older Learjet’s. Essentially, you exceed the maximum airspeed at altitude and it is unrecoverable to the point that you continue to speed up while not being able to produce lift with your wings. Further description: (your coefficient of lift eventually moves too far behind the wing making it impossible to produce lift, this causes the aircraft to lose altitude like a falling dart, in turn gaining airspeed and crashing. All Pilots are aware of this, some just push too close to the maximum speed threshold, and when you experience clear air turbulence or other factors like icing that would push you too far past the maximum speed threshold without the capability to control the wing normally, this happens. Wrap up: icing changes the shape of the wing critically and adds weight to plane (double whammy, but mainly airflow issue over the wing), Learjets are vulnerable to over speed situations because of the type of wing is small, sleek, and unforgiving in the name of efficiency and performance, mix all of that together with moderate turbulence which can fluctuate your airspeed, this causes the aircraft to enter Mach tuck over speed condition. The result is a lawn dart scenario that you see here.
2026-11-02 03:20:30
52
Fluid :
The turbulence broke the horizontal stabilizer.
2026-11-02 02:54:55
24
• :
Icing causes drag, at that altitude it’s very easy to stall with icing, my guess is they went into an uncontrolled dive, overspeed and the horizontal stab broke off making it unrecoverable
2026-11-02 02:41:00
12
Tony V :
At -44, Celsius in Fahrenheit are equal. If you’re having ice issues in that temperature, why would you go higher and not lower? I understand there’s turbulence and rain and storms but, icing seems to be the culprit so why would you go into colder temperature with ice issues? With more precipitation with the icing get worse if you went lower? I don’t know. Somebody out there does.
2026-11-02 03:38:17
0
Memphis Joe :
Mach tuck. Typical for swept wing jet types. It’s an overspread that causes reverse sensing in the horizontal stabilizer. Pulling back worsens the condition.
2026-11-02 03:01:30
3
Hummelville :
She reported turbulence that was causing the aircraft to fluctuate up and down by approximately 700 feet and 600 feet.
2026-11-02 02:23:01
10
davidflowers676 :
elevator or stabilizer failure put them in a unrecoverable dive? it's happened before. But I don't recall expressions of human anguish being made public ,especially so quickly.
2026-11-02 02:06:40
37
Gator Girl 🧡💙🧡💙 :
The Pilot knew it was coming...he was reciting The Lords Prayer 🙏
2026-11-02 03:30:54
5
Bonbon :
They flew thru a storm cell with -45° temps. Prob not a good thing for flight controls and the engines.
2026-11-02 02:55:38
11
Annie :
Why. Look outside??
2026-11-02 03:00:58
5
Flying🛩️_Army🪖_Dude :
Though I'm new to piloting, it sounds as if they went through rain/storm and icing formed presumably in ailerons or elevators. which basically lock up the controls and make it near impossible to control the plane once they pitched to the right. even tho it's FL, icing is capable of happening to a plane, even at temps of 70+
2026-11-02 00:30:39
12
Jwmbigmac3286 :
Means u are falling at almost 350 to 400 mph
2026-11-02 02:54:36
8
Cletus :
I like how all of the pilots haven’t commented.
2026-11-02 03:32:13
0
Ryan Jacobson :
Falling at 22,000 feet per minute is equivalent to 250 miles per hour. So a fast decline. But the video it looked like a straight nose dive into the ground.
2026-11-02 04:14:51
1
Colin chapman :
It was a Mach tuck event. Look it up very common in this plane type. They were over speeding combined with ice conditions lead a a shift in lift balance causing the nose to drive down. Mach tuck can be an unrecoverable event. Like the lawn dart you see in video.
2026-11-02 03:18:18
6
Calipso :
An Ice-Contaminated Tailplane Stall (ICTS)..causing a mach tuck..The Direct Icing and Pitch Control Link: AD 99-16-03 this is the full explanation based on the FAA directives
2026-11-02 04:21:23
1
Ben Sconsin :
I am speed
2026-11-02 03:28:01
0
1.3 millioninsight :
certainly pilot error there, not trying to pull up. hell throttle back, let alone icing up, let's go higher where its colder
2026-11-02 04:01:02
1
Tyfunk02 :
Ice. The tail stabilizer ices up, stalls, loses the ability to keep the nose of the plane pointed up, then you get an uncontrolled dive like a lawn dart.
2026-11-02 03:31:04
6
Chad :
Sad for these families , prayers sent .
2026-11-02 02:59:31
5
AM5150 :
it was horrific catastrophic failure
2026-11-02 01:37:11
5
Eric A Hobson :
at those speeds she wouldn't be able to talk on radio....
2026-11-02 03:19:31
1
Joe Havlik :
if they were the piolets shouldn't they have been looking outside
2026-11-02 03:24:30
0
Aimee Bruce :
isn't there a no fly zone that's 30 miles in radius
2026-11-02 03:15:13
2
Yomomma :
How high would a iceibg condition have to be I Florida right now
2026-11-02 03:24:54
1
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