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AN-124 Uncontained Engine Failure
An AN-124 out of Novosibirsk limped back to the Airfield today due to an uncontained engine failure. The Engine almost completely disintegrated and some spectacular wing and fuselage damage.
Gear failure on touchdown resulting in runway excursion. Appears all on board ok. |
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IIRC they have the main avionics bay in the upper deck next to the spar.
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Makes the bi-annual 'engine failure after take-off' in the sim seem a little mundane!!!
Good job getting it safely back on the deck, I'm sure the dents will buff out and a bit of speed tape over the hole will see it good! Edited to add: That's a hell of an egress ladder on the starboard side! :eek: |
Wow, One of these diverted into MAN UK the other day, left yesterday. Glad it wasn't that one. Russians build em tough...well, not the engines obviously.
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Russian forums reporting substantial electrical loss after an uncontained engine #2 failure coupled with a loss of engine #1 control, which remained on 70% thrust all way down including the landing roll, kept running after the aircraft went stand still.
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Bit like that Qantas A380 it seems. Lucky escape again fortunately.
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This is precisely why I never want to sit in that row of seating in any pax jet.
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Looking forward to those pilotless aeroplanes.
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Worth comparing to Cathay 780 as well where the crew were unable to control engine thrust and had 70 - 80% N1 on engine 1 during landing.
Touchdown speed would have been well in excess of normal and control very difficult with 70% N1 on an outbound engine. Almost certainly tyre failure followed by gear failure, possible hydraulic problems as well given the extent of the damage. Looks like an excellent job by the crew. |
I wonder if they did the standard 3 minute engine run-up on the threshold prior to departure?
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From the pictures it seems like the N1 rotor cartwheeled over the top to the other side.
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Or maybe it went through the cabin. Great job by the crew. That must have been a handfull.
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Good video of the overrun.
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Take off here plus various clips of landing.
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The pilot's description of the incident, as quoted by Oleksiy Sokolov on 'Mentour Pilot':
The second engine exploded and cut electric wires, so we lost all the electricity. And we returned to the aerodrome of departure on an airplane having a total electric failure. We lost all the communication, both intra-cockpit and with the ATC. We just gained 300m altitude at that point. We were a crew of 6, and other technical crew of 8, they were in the rear cabin. We took a decision to return to the aerodrome of departure, visually, we tried to establish visual communication but that didn’t work. We took a decision to land on RWY25, since it was a critical situation and we took a decision to land as soon as possible. Since we didn’t have a lot of altitude and excess of thrust too. There was a complete electric failure, brakes didn’t work, reverse didn’t work either since the wires were cut. The landing was soft, there was no damage during the touchdown, all the damage was due to the runway excursion. The gauges in the cockpit didn’t work, from the angle of attack we figured out the speed was about 280, it was a calculated airspeed. We haven’t even raised the flaps at that time, just raised the gears and we heard a bang. We still had control, but the electrical system failed completely. |
I am reminded of ASN Burbank DC-6 1976 where a prop blade went through the fuse and took out the opposite engine and hydraulics.
Kudos to the 124 crew:ok: |
we lost all the electricity. And we returned to the aerodrome of departure on an airplane having a total electric failure. We lost all the communication, both intra-cockpit and with the ATC. ..... , brakes didn’t work, reverse didn’t work either since the wires were cut. The landing was soft, there was no damage during the touchdown, all the damage was due to the runway excursion. The gauges in the cockpit didn’t work, from the angle of attack we figured out the speed |
Good job it was a VMC day !!!
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Ain’t that the truth!!
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And there goes another Progress D-18T... I wonder if the CF6 retrofit will eventually happen...
Very well done by the crew - does anyone know if there was freight in this flight ? |
According to this, 83.5 tons of freight: Mentour AN-124 engine failure description
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Interestingly, posted 23/03/2020:
"Ukrainian authorities have ordered Antonov An-124 operators to inspect engines on the type after an uncontained powerplant failure." "The directive, which takes effect from 25 March..." Source: aircargonews.net/airlines/freighter-operator/an-124-disk-inspection-ordered-after-uncontained-failure/ |
SLF attorney here, but still able to see fabulous piloting performance by crew.
Waiting for report from algorithm writers of fidelity-to-reality rating of test algorithm running onboard the aircraft; I'm sure its truthfulness to what actually was performed by the crew was, what, close to 98.6 percent? |
Did I see a couple of ejections after it hit the snow?
Hat, coat... |
Originally Posted by atakacs
(Post 10925966)
And there goes another Progress D-18T... I wonder if the CF6 retrofit will eventually happen...
I never heard of a planned retrofit, although if it did happen for new production it would make the engineering for a retrofit quite a bit easier. |
Well done Captain, that was not even a sim scenario case.Wife and children will be happy to see you safe and healthy.
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The CF6 has had issues with uncontained engine failures, though I think it may be on the -50 series. HP2 turbine wheel IIRC.
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ATC Watcher
+1 I bet the guy filming from the apron had an Airplane moment: "OMG he's coming right at me!!" |
Sim Instructor:
"So immediately after take off we're going to lose Number 2 engine, Freeze Number 1 at 70%, fail all electrics and power, take out the instrument panel and all the comms - ready?" |
So, he takes off, doesn’t get very high and circles back to the Airfield – all in Radio silence. Those in the tower have a terrific view of him coming round, landing and running into the overshoot.
Am I missing something or have they photo-shopped out all the emergency services chasing after this Aircraft during a very non-standard approach and landing? |
morton, all ATC knew was that they had lost radio contact. You don't call out the emergency vehicles for comm failure. Could they see any damage on the a/c? I doubt it.
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morton
He is going kind of fast for emergency vehicles to catch up and there is some question as to how stable he may remain. The real issue is how long it took to catch him at the end and what conditions did he state to the tower.. I was in one of these emergency vehicles once when a large transport was returning with a structural emergency, undefined, other than the pilots wanted to be on the ground immediately, We shut down all air operations until he rolled out and we chased him down the runway, probably a mile behind intending on catching him when he came to a stop |
Great Save !
Hope the crew got plenty of Vodka and Caviar. |
Just to introduce a bit of levity into what is going to be a long "why didn't he do this or that" from people who have mostly never been near an aeroplane but think that they know everything.
When I got near my first Argosy in 1962 I can vividly remember thinking during the external walkaround that if I had ever had to put it on the ground with the gear up then there was a lot of fuselage underneath me to be ground away before the family jewels were in peril. When I got near my first Belfast in 1972, I came to the immediate conclusion that the future of my family was in even better shape. How was I to know that Antonov had designed an even better solution? The crew did well - very well. |
They were working on a new version AN-124 with CF6-80C2 engines, but I don't know if that's on on-going program. Awfully quiet if it is still happening. I never heard of a planned retrofit, although if it did happen for new production it would make the engineering for a retrofit quite a bit easier. |
One imagines the seat cushions are no longer servicable.
Epic job be the crew for getting her back on the ground, espercially without injuries. :ok: |
dixi188
Right - the CF6-50 has had a number of issues with uncontained turbine disc failures (with a number of AD's to manage it). The CF6-80A also had a couple pretty spectacular turbine disc failures. Off hand, I can't think of any uncontained failure issues with the -80C series. |
Pistonprop - Radio silence was only one aspect. I thought the low circle back after take off and abnormal approach might have been an indicator of things not going too well.
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