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https://apnews.com/article/florida-...nvestigation-ab8ee2ceefe09c87b1a4364a384a90c6The NTSB team will spend days collecting every piece of the plane they can find. Investigators said Tuesday that pieces of a key part of the tail called the elevator, which controls the plane’s pitch, were found more than a mile away from the main crater. That confirms the plane started to break apart before impact.
https://www.yahoo.com/news/us/artic...ssengers-and-pilots-identified-145407805.html
https://en.wikipedia.org/wiki/Learjet_60. (note elevators on tail (vertical stabilizer)
The aircraft quickly went nose-down with a 60 degree bank while attempting to increase altitude (climb from 35000 ft to 37000 ft). The descent speed increased quick to 20000+ ft/min to 30000 ft/min just before impact. I wonder if the right wing stalled (lost lift, due to icing) causing a bank to the right, then the craft quickly lost altitude.
Was the de-icing system inactive? Or, was the de-icing system inadequate for the given conditions (-47°C, -52.6°F)? When did the aircraft lose the elevator(s)? Structural failure before or after aerodynamic forces exceeded structural limits (due to overspeed condition)?
How could this catastrophe been avoided?
Mentour video - Everything We Know About The LearJet Crash
Pilot Debrief (Hoover) video - The Learjet Plane Crash Was Worse Than We Thought!
Understanding the Learjet Crash in Palm Beach | Captain Steeeve