Posted on 01/04/2025 9:36:25 PM PST by BenLurkin
The aircraft's flight data recorder (FDR) was found to be partially damaged, making data extraction impossible on-site. Officials plan to send the FDR to the U.S. National Transportation Safety Board in Washington for analysis on Monday.
Separately, authorities have begun the process of returning victims' personal vehicles to their families, with applications being accepted from relatives.
Digital forensic analysis is also being conducted on 107 mobile phones recovered from the crash site under the consent of the families.
Investigators are hoping the analysis might yield critical information that might shed light on the in-cabin situation just before the crash.
(Excerpt) Read more at en.yna.co.kr ...
“...analysis might yield critical information that might shed light on the in-cabin situation just before the crash.”
Interesting...never heard of that before.
Maybe looking for camera footage of possible smoke in cabin. I read from several sources that can happen from burning bird corpse, either in main cabin or the cockpit.
That makes no sense.
Flight data recorders are robust but have weaknesses. As one might expect, their power and input/output connections are especially vulnerable to crash damage. That is the most likely problem, so the NTSB lab will carefully open or even disassemble the box, connect directly to the recorder inside, and pull the data.
“burning bird corpse smoke.” I never thought about that before, but it might make sense because cabin air is taken from the engine low or high stage engine compressor sections. Low stage air is used during high power setting operation, and high stage air is used during descent and other low power setting operations.
Bleed air for use throughout the aircraft will be up to 500 F. That temperature could roast bird parts, but probably isn’t high enough to make bird corpse smoke.
The pulverized bird flesh and guts would go past the bleed air ports in milliseconds.
Maybe they want to see if passengers commented on the odor?
Probably more likely they are looking for evidence of terrorist behavior.
It makes perfect sense.
One or more Deep States want to control the narrative.
Knowing for a fact who was on that plane might also tell us a lot...
But I won’t hold my breath.
utube Pilot Debrief- explained that right engine provided air to passengers compartment.
Left engine provided air to pilots compartment.
Interesting. Thanks for that bit of info.
I am well aware (knowledge bias).
FDRs are most frequently damaged in a crash and almost always returned to the lab.
I can’t recall ever reading such a statement in the wake of a crash (”The aircraft’s flight data recorder (FDR) was found to be partially damaged, making data extraction impossible on-site.”).
Maybe it was a translation thing, but unneeded statements of obvious facts set off my red flags.
An electrical connector was broken off the FDR. They had no means to fix that in Korea under the controlled circumstances required to preserve the data evidence chain..
South Koreans are a proud people and sensitive to slights. Not being able to read the flight data recorder locally requires an explanation, especially in a South Korean news source.
I think it does make sense. Probably the NTSB has specialized equipment that the South Koreans simply don't have.
When I was in the Air Force in the 1970s one day a lieutenant came into our instrument shop with an Angle of Attack indicator (AOA) that he said was removed from an F-4 that had crashed, and he wanted me to tell him if it was working at the time of the crash. I hooked it up to our mockup and it was no longer working. Since indicators normally return to zero with spring action when power is removed, I told him my guess was that it was working at the time of the crash but I thought it really needed to be opened up by the NTSB for a better answer.
It was indicating an AOA of -2. I don't think a wing would produce much lift at all with an AOA of -2.
FDR Recovery: From On Scene to the FDR Laboratoryi.e., The aircraft's flight data recorder (FDR) was found to be partially damaged, making data extraction impossible on-site = "makes no sense."
The FDR unit shall not be tampered with or opened, and the recording medium shall not be removed (i.e., the tape or memory module) until it reaches the recorder laboratory at Safety Board headquarters in Washington, D.C.
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