Author Topic: Philadelphia Learjet crash  (Read 742 times)

Offline Molsman

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Re: Philadelphia Learjet crash
« Reply #15 on: February 04, 2025, 08:45:39 PM »
Sad PArt it was a Medical Jet that crashed in Philly
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Offline icepac

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Re: Philadelphia Learjet crash
« Reply #16 on: February 05, 2025, 02:28:45 AM »
Pretty sure that the landing lights are on the landing gear but it should have a pretty bright light on the tail.

Is it possible the plane was upside down and the pilots were maintaining what the felt was around a G causing ghe angle to get steeper near impact?
« Last Edit: February 05, 2025, 04:31:21 AM by icepac »

Offline Maverick

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Re: Philadelphia Learjet crash
« Reply #17 on: February 05, 2025, 10:42:58 AM »
Trim sets and pilot inputs will be on the black box as well as cockpit conversations. Other than it appearing to be on fire in the videos I saw I have no idea what could have caused it so I am more than content to let the investigation playout and tell the tale.
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Offline Drano

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Re: Philadelphia Learjet crash
« Reply #18 on: February 05, 2025, 01:25:33 PM »
Crazy I was thinking a bird strike took out the pilots. Surely something major took out the controls. Trim maybe. Total hydraulics outage. At first I thought they just lost power. It'd drop like a stone then, which it did. But then I heard the video with sound. Definitely sounded full thrust, so that wasn't it. Saw they found the black box. I know they're designed to take a hit but it was pretty pulverized. Might never know. Plane was blown to literal smithereens. Saw they had the roads opened this morning but they'll prolly be finding pieces of that plane for weeks on roofs and in yards.
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Offline Oldman731

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Re: Philadelphia Learjet crash
« Reply #19 on: February 05, 2025, 02:00:12 PM »
I finally found it for you.... the minimum altitude for autopilot engagement is 1000 ft AGL.


PNE's elevation is less that 120, so if it reached 1600 ASL then they ought to have engaged the autopilot.

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Offline Busher

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Re: Philadelphia Learjet crash
« Reply #20 on: February 05, 2025, 05:07:22 PM »

PNE's elevation is less that 120, so if it reached 1600 ASL then they ought to have engaged the autopilot.

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Just a couple of points to that Oldman.

First, The airplane was airborn for roughly 40 seconds. As a relatively high time pilot, that suggests to me that it was never under even a modicum of control.

Second, autopilots will not engage in certain circumstances such as extreme force being applied to pitch or roll, pilots making trim inputs while trying to engage, the airplane being in an extreme or unusual attitiude. There are more but I think these might clarify why the autopilot was not destined to be their saviour.
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Offline icepac

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Re: Philadelphia Learjet crash
« Reply #21 on: February 05, 2025, 05:08:43 PM »
Maybe they swiched on the autopilot and it dove in?