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JeJu Air Crash - Plane STOPPED RECORDING 4 Minutes Before Crash
- Thread starter imhotep
- Start date
In newer aircraft, FDR/CVR has battery backup. Even without battery backup, it does have 2 independent power sources. ( 2 engines ). And FDR is not critical for flying.
Safety rules are written in blood.
I was skeptical when they gave the black box to the US considering that the plane is also made by US company.
That is why Boeing defined as one of skeptical airlines
------ Post added on Jan 13, 2025 at 11:24 PM
Seems like this 747-800 in subject was manufactured before 2010.
The more I read the Reddit megathread, the fishier this gets.
Tesla style
Like Kegworth. But it's really unlikely for them to lose all power even if both engines we shut down.
Without engines, get power from where ?
බිජ්ජ කොට කොරියන් කාරයොත් වැඩේ වහන්න වගේ හදන්නේ
------ Post added on Jan 14, 2025 at 6:38 AM
I wasn't missing the context and commenting on fail-safe.
BTW both the FDR & CVR are powered from the engines. FDR is powered by Engine #1 via the AC TFR BUS 1 while the CVR is powered by Engine#2 via the AC TFR BUS 2.
In case of one engine failure the power is fed via the other engine or by the APU via a Tie Bus.
The battery backup is optional (but no cost option) in which case these devices are powered by DC sources.
I dont think pilots were worried about FDR when they about to crash.
APU need some time to spool and generate power. No need RAT since they had battery backup for radios and navigation.
They didnt had time to do anything. They crashed withi
n 04 min
APU need some time to spool and generate power. No need RAT since they had battery backup for radios and navigation.
They didnt had time to do anything. They crashed withi
n 04 min
FYI....
The South Korean Aviation and Railway Accident Investigation Board (ARAIB) confirmed the discovery of bird feathers and blood in one of the engines recovered from the crash site.
Sources familiar with the investigation have reported similar findings in the second engine, according to a Reuters report. South Korea’s Ministry of Land, Infrastructure, and Transport has so far declined to comment on whether feathers and blood were found in both engines.
This revelation comes after the pilot declared an emergency shortly before the crash. Flight crew had reported a bird strike during the initial approach to land. They subsequently initiated a go-around maneuver to attempt a landing on the opposite end of the runway.
Notably, air traffic control had warned the crew of increased bird activity in the area just two minutes prior to the emergency call.
The South Korean Aviation and Railway Accident Investigation Board (ARAIB) confirmed the discovery of bird feathers and blood in one of the engines recovered from the crash site.
Sources familiar with the investigation have reported similar findings in the second engine, according to a Reuters report. South Korea’s Ministry of Land, Infrastructure, and Transport has so far declined to comment on whether feathers and blood were found in both engines.
This revelation comes after the pilot declared an emergency shortly before the crash. Flight crew had reported a bird strike during the initial approach to land. They subsequently initiated a go-around maneuver to attempt a landing on the opposite end of the runway.
Notably, air traffic control had warned the crew of increased bird activity in the area just two minutes prior to the emergency call.
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