Originally Posted by Compton3fox
(Post 11595408)
There is a suggestion that fuel icing may have been at play here. 350 gallons uploaded in OSU but without anti ice agent. May or may not be a factor but a possibility... They flew down at FL400.
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Originally Posted by JanetFlight
(Post 11595062)
Could it be some sort of core lock, I humble ask?
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Originally Posted by BFSGrad
(Post 11595567)
Core lock on the CF34 doesn’t cause engine shutdown. Instead it complicates engine restart following a shutdown. For core lock to occur, N2 has to stop rotating.
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Originally Posted by Compton3fox
(Post 11595408)
There is a suggestion that fuel icing may have been at play here. 350 gallons uploaded in OSU but without anti ice agent. May or may not be a factor but a possibility... They flew down at FL400.
The idea that they just ran out would also imply the crew staring at fuel gauges headed toward the Big E didn't bother to mention it or land and buy more. |
Originally Posted by Compton3fox
(Post 11595408)
There is a suggestion that fuel icing may have been at play here. 350 gallons uploaded in OSU but without anti ice agent. May or may not be a factor but a possibility... They flew down at FL400.
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If the Flight Dept is hard over on fuel costs it would be tragic. The final fuel slips are already under review.
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Originally Posted by MichaelOLearyGenius
(Post 11595622)
BA38 at LHR?
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Landing video - flew it right til the end
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[QUOTE=MLHeliwrench;11595877]Almost pulled it off. A little too much left to right momentum. So close. RIP
Landing Video [/QUOTE ]Yes what a shame! RIP guys. |
Originally Posted by MLHeliwrench
(Post 11595877)
Almost pulled it off. A little too much left to right momentum. So close. RIP
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Not the first Challenger to suffer a dual-engine flame out. 1994, a 601-3A at FL 410 over Nebraska about 2.5 hours into their flight. Fuel contamination (water). Here's a link to the report; https://reports.aviation-safety.net/...CL60_N88HA.pdf
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Dashcam video of the plane crashing on the freeway.
https://nypost.com/2024/02/13/news/s...orida-highway/ |
After watching the dash cam video, it might have been better to try for the median strip? The pavement pretty much guaranteed an encounter with vehicles. Granted, the crew was between a rock and a hard place with no great choices .
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Originally Posted by Lake1952
(Post 11596375)
After watching the dash cam video, it might have been better to try for the median strip? The pavement pretty much guaranteed an encounter with vehicles. Granted, the crew was between a rock and a hard place with no great choices .
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Originally Posted by rippey
(Post 11595542)
I never flew the 604, but have several thousand hours in the 601. We always took negative fuel unless pre-mixed was the only option - challenger has fuel heaters. Also the fact there was no icing inhibitor makes a situation where the fuel was contaminated by DEF unlikely. In previous cases of DEF related engine damage I believe the prist tanks on the truck were accidentally filled with DEF.
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Will the recorders shed more light into the cause?
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I have seen no reports that indicate anyone on the highway was injured. I see nowhere on the golf course that is longer than 1,000 ft before hitting obstructions. The median has a cable or other barrier and is barely more than a wingspan wide between carriageway edges. The Southbound lane is about 110 ft between the median barrier and the wall and almost all obstructions except the wall are moving in the same direction as landing.
The touchdown (ground impact) seems to have been on the roadway but to have resulted in collapse of the right MLG then shortly after the left MLG as the aircraft leaves the paved surface. Did MLG collapse cause rupture of the wing tanks? The crew had less than a minute to sort this out. I'd say they did a damn good job that three on the aircraft survived and no one on the ground was killed. Very sorry the pilots were not so fortunate. |
The plane crushed a small truck. The driver somehow didn't die.
https://winknews.com/wp-content/uplo...ple-2-9-24.jpg In hindsight the canal was the least obstructed choice. It's shallow enough to prevent sinking and wheels up would have been less traumatic. Width wise is a bit tight, but doable. Engines over wings so they don't scoop water. However I can see the option of setting the plane down on a nice concrete landing area would be very attractive, so second guessing doesn't show the choice from the front seats was fundamentally flawed. It's been done successfully by others, but the traffic here was far denser than those previous landings and the plane much faster than similar attempts. Coasting a 172 off at the next exit is far simpler than this. Had they not hit the truck they might have managed to straighten it out, but the collision with the truck looks to me like it forced the plane to roll (as in roll-pitch-yaw) towards the wall. |
Originally Posted by EXDAC
(Post 11596530)
I have seen no reports that indicate anyone on the highway was injured. I see nowhere on the golf course that is longer than 1,000 ft before hitting obstructions. The median has a cable or other barrier and is barely more than a wingspan wide between carriageway edges. The Southbound lane is about 110 ft between the median barrier and the wall and almost all obstructions except the wall are moving in the same direction as landing.
The touchdown (ground impact) seems to have been on the roadway but to have resulted in collapse of the right MLG then shortly after the left MLG as the aircraft leaves the paved surface. Did MLG collapse cause rupture of the wing tanks? The crew had less than a minute to sort this out. I'd say they did a damn good job that three on the aircraft survived and no one on the ground was killed. Very sorry the pilots were not so fortunate. |
Google Maps coupled with 20/20 hindsight shows a number of lagoons in the area, two quite sizable to the NE & SW of the I-74 interchange to the North of the crash location, that may have been reachable.
Precious little think time available to a startled crew. |
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