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Almost identical incident happened 3 years ago - the same type (B777-200), the same engine (PW4077), the same operator (United Airlines), the same side (right e
by terramex 6y ago
Almost identical incident happened 3 years ago - the same type (B777-200), the same engine (PW4077), the same operator (United Airlines), the same side (right engine), the same failure (unconfined engine failure).
https://avherald.com/h?article=4b4e8ca7&opt=0 https://avherald.com/h?article=4b4e8ca7&opt=0
I would not be surprised if the whole fleet of this type/engine gets grounded for some time.
- leesalminen 6y agoAnd I’m supposed to fly on a 777-200 to Denver operated by United in just a few days. Yay!
- jfk13 6y agoAt least it's unlikely to be that 777-200.
- viraptor 6y agoThat specific plane will go through a lot of rebuilding, checks, thorough investigation, etc. Given a choice, I'd take that plane over another one.
- AdamJacobMuller 6y agoYeah but not if they rush the rebuilding and complete it in a few days. I suspect that's gonna require too much duct tape and bubble gum.
- Reason077 6y agoAssuming there’s no damage to the airframe itself, it could be back in the air pretty quickly. Changing the engine is a fairly routine procedure, which takes about a day: https://blog.virginatlantic.com/change-aircraft-engine/ https://blog.virginatlantic.com/change-aircraft-engine/
- reddotX 6y agogood luck!
- valuearb 6y agoThe 777 has been flying for 25 years with almost no fatal accidents. Unless your flight will be flying over Russian anti-aircraft missile batteries or through a wormhole above Malaysia, you should be perfectly safe.
- codingdave 6y agoAnother way of looking at it is that after flying and accumulating 25 years of wear and tear without major incident, we now have seen a repeatable flaw that these aircraft may encounter due to their age.
- ajarmst 6y agoAs well as two demonstrations that the aircraft meets the design specification that even a catastrophic failure in the worst stage of flight is easily recoverable. I'd expect an increased inspection rate, possibly some new mandated ND testing for fractures and discontinuities (the last one was an LP shaft failure, IIRC). One thing that does bug me, though is that we now have two events where the shroud was lost. Were these uncontained failures (problematic because of potential for wing damage) or contained faiLures followed by aerodynamic shedding of the damaged shroud (system functioning as designed). I'm also somewhat concerned about the fire remaining in the burner stage. Might have just been lubricants, but I'd want to make sure the fire handle had been pulled and investigate whether it worked correctly.
- interestica 6y ago> As well as two demonstrations that the aircraft meets the design specification that even a catastrophic failure in the worst stage of flight is easily recoverable. But in that type of failure, you can't control where the pieces go. https://abc7ny.com/philadelphia-emergency-landing-southwest-airlines-plane/3628459/ https://abc7ny.com/philadelphia-emergency-landing-southwest-... It resulted in depressurization and partial ejection/death.
- kortilla 6y ago
- leetrout 6y agoAnd you have nothing to worry about. Statistically you really have nothing to worry about given this incident happening today. Enjoy your flight and enjoy Denver. Get a donut from Voodoo for me.
- Aperocky 6y agoWell, wouldn't be surprised if the aircraft is literally this one, and you'll now fly on a different one.
- oh_sigh 6y agoLook on the bright side - you're probably more likely to die from catching COVID-19 from another person on the flight.
- tekromancr 6y agoNot sure which is the worse way to go. 3-8 mins of flaming, falling terror; or weeks of facing potential death in a hospital
- alamortsubite 6y agoIf you're riding in an automobile to/from the airport, you have reasonable cause for concern.
- hazeii 6y agoI thought it was 'confined' if the containment ring did its job? If it had failed (like not supposed to) it would have been a whole lot worse.
- colechristensen 6y agoThe plane landed and didn’t blast enormous holes with ejected compressor blades. That’s a successful failure.
- underseacables 6y agoIs that what happenes when The fan blades fly off and hit the airplane?
- kyshoc 6y agoThat’s almost exactly what happened on Southwest 1380[0] a few years ago. [0]: https://en.wikipedia.org/wiki/Southwest_Airlines_Flight_1380 https://en.wikipedia.org/wiki/Southwest_Airlines_Flight_1380
- hazeii 6y agoAs ever, more detail and clear explanations on pprune[0]. As one commenter put it, to an ER doctor this is a shallow wound with lots of blood. [0] https://www.pprune.org/rumours-news/638797-united-b777-uncontained-engine-failure.html https://www.pprune.org/rumours-news/638797-united-b777-uncon...
- colechristensen 6y agoPieces on the inside of jet engines are spinning between 2,000 and 12,000 rpm. They should all be properly contained in an airliner, but before that was the case of one fan blade broke and hit the plane it could look like a bomb blew an enormous hole in the side of the plane. These small pieces have a huge kinetic energy because they’re spinning so fast. Nothing bad happening, everyone uninjured and a plane making an orderly airport emergency landing is many layers of safety systems all working properly.
- guidedlight 6y agoThe failure was blamed on lack of training for inspectors.
- nradov 6y agoKorean Air had an incident in 2016 where a PW4000 on a Boeing 777 disintegrated during takeoff. https://en.wikipedia.org/wiki/Korean_Air_Flight_2708?wprov=sfla1 https://en.wikipedia.org/wiki/Korean_Air_Flight_2708?wprov=s...
- throw0101a 6y agoAnimated recreation with ATC audio of that flight (UA1175): * https://www.youtube.com/watch?v=O-_IAKCBTxc https://www.youtube.com/watch?v=O-_IAKCBTxc Animated recreation with audio of this one (UA328): * https://www.youtube.com/watch?v=G7-zh7Sebr8 https://www.youtube.com/watch?v=G7-zh7Sebr8 * Via: https://forums.liveatc.net/atcaviation-audio-clips/ual-328-uncontained-engine-failure-den/ https://forums.liveatc.net/atcaviation-audio-clips/ual-328-u...
- thgaway17 6y agoIt was a bird strike.
- djmips 6y ago2020: (JAL 777 same engine) https://www.youtube.com/watch?v=O-_IAKCBTxc&t=10s https://www.youtube.com/watch?v=O-_IAKCBTxc&t=10s 2018: United 777 same PW engine (seems very similar but without fire) https://www.youtube.com/watch?v=O-_IAKCBTxc&t=10s https://www.youtube.com/watch?v=O-_IAKCBTxc&t=10s 2016: KAL 777 same PW engines (aborted takeoff after engine failure) https://www.youtube.com/watch?v=9bHrW_34kAk https://www.youtube.com/watch?v=9bHrW_34kAk All planes had zero casualties.
- Kye 6y agoIf I were an airline's insurer, I wouldn't want to gamble on the good luck lasting.
- sandworm101 6y agoNot luck. Design. These failures are anticipated. That they can be handled so well is testimony to the energy and regulation put into engine safety over decades. Whereas once such failures could down an airline, killing all on board, they can now be handled safely.
- BrianOnHN 6y agoHow do you safely handle the debris falling to the ground?
- sandworm101 6y agoYou dont. A few pounds of engine parts is infinitely better than the previous option, many tons of airliner falling on a house.
- wavefunction 6y ago@sandworm How about a third option where neither the plane nor the debris falls?
- 6y ago
- pdonis 6y agoFrom the report on the previous incident (Feb 2018), it looks like NTSB determined that the root cause was a cracked fan blade in the engine that should have been spotted on a previous inspection but wasn't. That doesn't just implicate this type/engine; it implicates the inspection procedures in general.
- acvny 6y agoAlso, the same destination: Honolulu. And only 1 digit difference in registration number (N773UA in 2018 vs N772UA in 2021).
- acvny 6y agoMust be a bad batch. Please return by post with batch number visible for a refund and let us know what you didn't like about the product