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Russian Emergency Landing

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Russian Emergency Landing

Old 12th Sep 2023, 11:04
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@VHOED191006, that is only partially correct.

The effect You describe occurs when You have lost both green and yellow systems and are down to the brake accumulator. In that case, You are indeed down to about 7 brake applications before pressure runs out. However, if the yellow hydraulic system is pressurised, alternate braking with antiskid is available with an unlimited number of applications.

Ref. OM-B DSC 32-30-10 Braking modes

Until now, there is nothing indicating anything beyond a plain Green sys failure on the flight in question as far as I am aware.

What was the weather like at Omsk at the time of approach and is there a word on the runway condition maybe?
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Old 12th Sep 2023, 11:07
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Originally Posted by Tu.114
@VHOED191006, that is only partially correct.

The effect You describe occurs when You have lost both green and yellow systems and are down to the brake accumulator. In that case, You are indeed down to about 7 brake applications before pressure runs out.

However, if the yellow hydraulic system is pressurised, alternate braking with antiskid is available with an unlimited number of applications.

Ref. OM-B DSC 32-30-10 Braking modes
Got to revise on my Airbus then 🤭
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Old 12th Sep 2023, 11:08
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Some pictures here:

https://mash.ru/nsk/news/177063
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Old 12th Sep 2023, 11:20
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There are three independent hydraulic systems on the A320 and even if for some reason the two primary ones fail, the aircraft is still controllable with the back up one though you’d have a lot of procedures to run through and would want to be landing at a decent airport.

A single failure wouldn’t be a major drama at all, you’d lose a few systems and have some ECAM work but a normal landing would be expected. Something obviously went seriously wrong to result in an off airport landing.
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Old 12th Sep 2023, 11:36
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Originally Posted by DroneDog
Sanctions are wonderful, for our competitors. other potential Airbus and Boeing customers will remember this. China's aviation industry is on the rise. Give it 10 or 20 years and we can say we shot ourselves in the foot.
And you don't think a situation may develop where China may feel the need to apply sanctions.

Sometimes you have to pick sides. The world will know why.
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Old 12th Sep 2023, 12:06
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They pretty quickly started dismantling the A/C: https://x.com/andrewperpetua/status/...4cJ3snHPSDNP6w
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Old 12th Sep 2023, 12:34
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Originally Posted by ettore
They pretty quickly started dismantling the A/C: https://x.com/andrewperpetua/status/...4cJ3snHPSDNP6w
Its an old video from similar accident. Few years ago they landed on a corn field due to eng failure.
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Old 12th Sep 2023, 12:37
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This is not exactly the method to generate valuable spare parts?
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Old 12th Sep 2023, 12:43
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Thumbs down Sorry

Originally Posted by Luray
Its an old video from similar accident. Few years ago they landed on a corn field due to eng failure.
Sorry. I did not know and didn't check properly the video. Shame on me
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Old 12th Sep 2023, 14:03
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Video 321, today's accident 320.
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Old 12th Sep 2023, 15:25
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Any crew that runs a jet out of gas dealing with an emergency should be thrown in jail as incompetent. Landing with no gear at the original destination would have been better than making a forced landing in a field. Had the transit been over water the outcome would have been totally different. Even a brand new FO could tell you that the FMC fuel predictions are nonsense with the gear down.

Was it really a good idea to gravity drop the gear before deciding that going elsewhere to a longer runway was a better course of action? Leaving 2500m of runway behind you in favour of 3600m at Novosibirsk and then running out of gas only half way there is supremely incompetent.

Edit: Can't spell!

Last edited by Magplug; 12th Sep 2023 at 16:12.
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Old 12th Sep 2023, 15:35
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Originally Posted by VHOED191006
We are given to believe that it's the green system failed. That controls the normal braking system, leaving the aircraft on the alternate system (controlled by the yellow system). That's only limited to 1,000psi and around 7 applications of braking. That requires you to have a longer runway to land on. The gear is also controlled by the green system. Appears that it was stuck down with the loss of hydraulics. Looks like they really had no other choice!
You have full braking including anti skid on the alternate system powered by the yellow hydraulics. You might mean a failure of both the green and yellow which would put you on the accumulator.
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Old 12th Sep 2023, 16:22
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Ural needs to ask Spindelberger to design a trailer for A320 gilders

The field looks long enough for a takeoff, but it looks like the cowls are assisting the MLG.

Braking action seems to have been pretty good, even with limited hydraulics. How long were the ruts?
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Old 12th Sep 2023, 16:37
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A diversion with gear down that leads to running out of fuel is UTTER INCOMPETENCY!

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Old 12th Sep 2023, 16:46
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I'm going out on a limb. Mistakenly dropped the gear. Diverted. Ran out of fuel. Not the first to have the gear down and run dry, nor the last. Good landing mind!
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Old 12th Sep 2023, 17:11
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At least they minimised wear on the brakes the CP will be happy….
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Old 12th Sep 2023, 18:29
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Originally Posted by RatherBeFlying
Ural needs to ask Spindelberger to design a trailer for A320 gilders

The field looks long enough for a takeoff, but it looks like the cowls are assisting the MLG.

Braking action seems to have been pretty good, even with limited hydraulics. How long were the ruts?
Yea, getting it out of there is going to be a challenge to say the least. Perhaps they can bulldoze something suitable if the rains stay away for a while to allow the ground to firm up - otherwise they'll have to disassemble and/or scrap it in-place.
Reminds me a bit of the 737-300 that landed on the dike outside New Orleans after losing both engines in a severe thunderstorm (which they did successfully fly out and returned to service).
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Old 12th Sep 2023, 19:04
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Lets get to the important stuff! How was their RT?
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Old 12th Sep 2023, 19:47
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No R/T audio yet!

Well, the PPruners are early on the kudos without R/T audio or transcript to judge their ICAO or host state radio comms, yet.

Pan? Mayday Fuel?

Na Zdorovie!
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Old 12th Sep 2023, 20:07
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This will come into CRM studies presentations in a year or two. They've lost green hyd, decided to divert from normal weather 2500m runway with FFRS cat 8 or cat 9 service, hugely underestimated the fuel burn on low level gear out flight and ended up how they ended up. At least this time everyone is alive and well. Aircraft is not supported by Airbus, so assessment and repairs are questionable.
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