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| TURIN
July 15, 2025, 20:54:00 GMT permalink Post: 11923218 |
SLF here, but I did read all 3 threads. To me, this doesn't seem likely. But it got me thinking, what about the fuel switches being partially cross-connected left to right and right to left? If each of the 8 channels (4 for each switch) has its own connector, it could be possible. From what I understood from earlier posts, from the 4 channels of each switch, there are 2 can shut down an engine. If that's the case, assuming some cross-connection, a single switch movement might be able to affect both engines.
But, even if this were possible, there are problems with this hypothesis too. The problem would most likely be discovered during engine startup, if the engines are started one by one, not at the same time, as they probably wouldn't start unless both switches are set to RUN. And not sure how this would fit the various delays recorded on the FDR. And you still need something/somebody to move at least one of the switches after rotation to trigger the issue. Both switches being moved by the pilots still seems much more likely to me than some technical issue. "Software faults" do not usually come out of the blue, for no particular reason. Just because it's recorded by software it doesn't mean that it's not something hardware related that triggers it. In a previous reply, not sure if in this thread, it was mentioned that the message meant that there was implausible data coming from those STAB cutoff switches, if I remember correctly. Something like a channel showing both on and off at the same time, or the other way around, or some other inconsistency. That could have been an intermittent issue, that might indeed not be reproducible with a BITE test, and just be cleared. But if the STAB cutoff switches did indeed have a problem, or one was suspected due to recurring reports, is it really so unlikely that they might try to look for some hardware issues, such as a loose connector? For the Lion Air accident involving MCAS, after repeated issues during previous flights, they did exactly that: disconnected and reconnected some connectors to check for issues, among other things. EG. GPS faults are common among aircraft that fly around Turkey and other troublesome areas of the world due to GPS 'spoofing' or jamming. The problem is known and a procedure to reset the fault and verify that there is no 'hard' fault hidden in the hardware is used every day. As I posted earlier in this thread, the Stab Trim (Posn) XDCR status message can be deferred under the MEL with a maintenance procedure that does not involve touching those switches. Last edited by TURIN; 17th July 2025 at 12:59 . Subjects
FDR
Fuel (All)
Fuel Cutoff Switches
MEL
RUN/CUTOFF
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| TURIN
November 07, 2025, 21:08:00 GMT permalink Post: 11984974 |
Sued, on what grounds? The facts!?
Subjects: None 2 recorded likes for this post.Reply to this quoting this original post. You need to be logged in. Not available on closed threads. |
| TURIN
November 28, 2025, 19:42:00 GMT permalink Post: 11997364 |
I'm sorry but that 'Federal' investigation is a load of b0ll0x!!!
The motor controller is not a motor. A trim position transducer is just a sensor. In no way is any of that "the entire horizontal stabiliser trim system". The 'core' is a dual computer based system, CCR. Common Core Resource, There are two of them completely independent of each other, almost all systems interact with them. The water ingress theory has been put to bed on this thread and on other equally ridiculous and speculative threads. Please stop. Last edited by TURIN; 28th November 2025 at 22:06 . Subjects: None 11 recorded likes for this post.Reply to this quoting this original post. You need to be logged in. Not available on closed threads. |
| TURIN
November 28, 2025, 20:37:00 GMT permalink Post: 11997394 |
Looks like somebody set an Artificial Intelligence to write a load of gibberish....again.
Edited to change AI to avoid confusion. Last edited by TURIN; 28th November 2025 at 22:12 . Subjects: None 4 recorded likes for this post.Reply to this quoting this original post. You need to be logged in. Not available on closed threads. |
| TURIN
November 29, 2025, 18:20:00 GMT permalink Post: 11997875 |
"Wait for the report".
One might ask....why? Everything publicly recorded, reported, and speculated upon is in public domain. Patiently waiting for approval and reporting from those directly (and in my opinion extralegally) retaining in secret important evidence is part of the problem. Am I too too cynical? Public white papers are written generally by those who are employed by politicians, not by the public, though some would argue that is not legally accurate ..... "So the situation in India is not as unprecedented as I thought (and said). Even so, together with a segment on the NZ Mt Erebus case, it would add to public international air law curricula, someday maybe." Those harmed, and must be made whole, are the citizens of Louisville, and environs. Jurisdiction belongs to those who claim it. There is well understood legal framework for following settled law. But the airport is owned by the Federal Government? Probably leased to. ... That does not give the Fed jurisdiction, it makes the Fed a defendant. They are not there to apportion blame. Subjects: None 3 recorded likes for this post.Reply to this quoting this original post. You need to be logged in. Not available on closed threads. |
| TURIN
November 30, 2025, 11:52:00 GMT permalink Post: 11998199 |
Accident investigation is nothing to do with history it's to do with facts. Nothing more, nothing less. They don't hold the evidence, they examine it! Subjects
AAIB (All)
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