"MAYDAY, MAYDAY, MAYDAY" UAL 328 B-777 200 20FEB 2021
20 Th02, 2021
187 239 lượt xem
LINKS:
Aviation Herald:
avherald.com/h?article=4e35503b&opt=0
VasAviation:
viworld.info/rock/video/qG9g3ZqYtpWV1mw.html
Agent JayZ:
viworld.info/rock/video/t4mqxKOlyGOdzaM.html
The Verge:
www.theverge.com/2021/2/20/22293208/united-airlines-ua328-denver-engine-failure
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good job United !!!.....
So grateful we have so many great professionals flying these aircrafts today. Cool under pressure.
Great job! Most fortunate there were no casualties on the ground. The last I remember such an event occurring was the Quantas A380 out of Singapore with Rolls Royce engines, suffering an uncontained engine failure with nasty damage to the aircraft structure and debris falling on a school in Indonesia.
Haven't seen you in awhile. Nice job and glad to see your back flying.
It was a gremlin. LOL
Thank You... Just Thank You! So much anxiety is now gone for me.
THE DEFECT ENGIN SHOULD NOT STILL BE ON FIRE AFTER THE PILOT ENGAGED THE EXTINGUISHER WITCH MEAN FUEL WAS STILL COMMING IN THE ENGIN AND COULD'V LED TO WING EXPLOSION SO BIG FAULT HERE
Good thing it happened early then over the pacific en route to hawaii. Hope nobody got hurt by the debris
Thank you for going over this. I work close to where all this happened. We were so relieved there were no injuries in the air or on the ground. Great job United.
Use an Airbag underneath your jets son...save hundreds of lives. no you really can do that.
I bet when the oxygen mask dropped down from the ceiling a new pair of underwear dropped down with it.
Absolutely training paid off. Shows you the professionalism of these guys working together. Very lucky indeed, this could have been so much worse especially with full fuel load...Thx as always for your great reviews.
@Libturds Suck for sure!
Not blowing up in the first couple of minutes was lucky. The rest was just a routine engine out approach and landing.
7:15 can't see anything. You do know you can put videos at fullscreen, right?
Requesting MAYDAY
Thank you.
We have it on good authority that the incident happened "thousands of miles in the air". Watch at the 1:00 mark in this news report... viworld.info/rock/video/layS2YLSynibr4k.html Reporter confused or actually ignorant?
The referenced video has been supposedly removed by the uploader.
Thanks for the Video. I'm glad you mentioned the immediate need to make a turn away from the rocky mountains, most of the reports missed this.
Kudos to the crew and to the ATC. Beautiful job and lessons learned. New video identifies fan blade failure as the root cause, I had not thought about landing the parallel runway due to possible FOD on the departure runway.
In WWII that would be counted as a "probable". Very glad no one was injured, very sorry the failure occurred. Determining the cause and whether any failure was due to offshore manufacturing (if any) will be interesting.
What you don't see is the effort behind the scenes by ATC to clear all other aircraft out of the way in order to give this aircraft the priority it deserves - it's quite a bit more complicated than you might think. I've been in that situation, I know
If you look one of the other videos from a passenger further forward, it must have been done with a newer iPhone, the FPS and image quality are high enough to stop or pause the video and see the two missing blades, the root separated blade and the trailing blade broken mid-span, jus like the other two failures, December 2020 and the 2018 HNL flight.
Thank you for the informative report as always. Most of the passengers aboard were probably not aware of the seriousness of this engine failure. The crew did a superb job ; as you said that's why they get the big bucks ! Glad no one on the ground got hurt either; pretty big pieces fell in that yard.
Fan Blade ... metal fatigue. Not the first time this has happened. Put Greg Feith on the case.
Why get it from you? We too can do our own news search.
Good luck Tom!
So if you are the Denver Broncos football team the first officer becomes the quarterback , runs the offense . The captain becomes the offensive coordinator , decides the best plays to run to score. Touch down United ! 😊
Boeing planes are not what they used to be.
So! Question here - Why are these engines failing - Back in the day when rolls royce engines were used on the 747 never had these problem fan blade failures...Something tells me that the engineer's have to go back and redesign these blades. I kinda get the feeling that either bad maintenance when a inspection is performed or bad parts that are still in the system where some one is passing these so called semi passable parts with out doing a full integral check of the blade in question meaning there could be dosen of flawed blade that are waiting to fail like this one did. The tv show 20/20 has done investigative reports on shoty practices of used parts being put back into service that have questionable paper work -???
Ironically.... the tail number 772 is the same tail number as Southwest flight 1380 aircraft that has similar emergency. (N772sw) (N772UA)
***** _THANK YOU, JUAN-!_ Hopefully, not a silly question -- but why didn't they activate the *FIRE SUPPRESSION* on the starboard engine ..? SIDE NOTE: Thank you for your viddies. I discovered you on the Oroville Spillway catastrophe and please know, amigo -- what you do matters to aviation and the wellness of your fellow humanity. D.A.
They did...see latest update-confirmed.
Great analysis as always Juan. Just wondering if you could comment on the difference between a heavy mayday and a regular one? I'll let myself out now! 😅
Capitan Behnam has saved another crash in 2018 , check him out , he must be an angel 😇
The MSM was no doubt salivating but everything turned out fine. :-) :-(
"Good job, United."
The calmness of the aircrew reminds me so much of radio traffic for Captain Sully when he landed in the Hudson River...very professional...well done!
Juan, is this the same engine series that lost an engine out of philadelphia last year.
Pilots were absolutely awesome but also, ATC!!!
What are the odds of two identical engine's fail exactly the same way in 24 hours of each other ???
It’s really great to have you explain in thoroughly understandable terms what and why this happened and all the associated procedures that were put into place during this emergency and from an experienced pilot of yourself, well done and thankyou, but it also shows what may have happened if the engine fan blade(s) and nacelle/cowling parts happened to explode apart on a different trajectory and damaged wing slats or fuselage, severed hydraulic/fuel lines etc which hypothetically could have happened also but the fact that it looks like it fell away from the aircraft structure and landed without any injuries is a good thing but looks like it easily could have gone the other way, you have a great channel, extremely interesting thank you, cheers from Melbourne, Australia.
I've always said commercial pilots are the best trained professionals of any profession in existence. Great job by the crew, that could have went really bad like American 191 heavy.
I was thinking about you and your channel when this happened the other day. More so since you fly a B777 and wanted your thoughts. Thanks for sharing
It's great that people have so much video of these engine failures. It could be helpful in determining what happened to cause such a catastrophic event
Do the 777 engines use jet fuel to hydraulically operate variable stator/guide vanes or bleed valves? If not, what do they use? Wondering if that could be the source of the fire
Excellent presentation, as always, Juan. At about the 19 minute mark, you talked about taking the ILS in order to stabilize the approach and minimize the chance of a go-around This is key. As a pilot , you know how to land the aircraft. Do it. Make it as normal as possible Figure out what she will do, then take her to the runway (or field, if necessary) Don't be the guy who rolls his helicopter over because he's worried that he forgot to check the fuel cap.
impressed by the professionalism of all involved.
why dont aircrew notify the flightcrew of souls on board as soon as the a/c is buttoned up?
I don't watch Major Fake News Networks anymore - I go to the expert channels to get the real news - channels like yours.
Thank you!!
it was contained no debris from the engine penetrated the aircraft it was all contained within the engine.
Wow! Never heard a report this clearly ingormative. Very exciting too.
1;51 a turban is what a seikh wears on his head a TURBINE is what is in a jet engine learn to pronounce or enunciate or learn the difference do not call yourself or try to portray yourself as a so called expert if you cannot describe the relevant parts of an engine by their correct names. I watched a video earlier with ATC tapes provided by VAS Aviation (thanks Victor) and that presenter knew the difference between a turbine and a turban
Paul my pedantic punter friend....LOL
Thanks for making it clear to all of us idiots that can't pronounce certain words perfectly like you do. How do you pronounce selfimportantprig?
What if this engine would have exploded midway over the pacific? With that engine shaking on fire would they have needed to ditch it in the water. If so that's very scary thought.If it did go down in the pacific would it have been survivable. Floating rafts and life vest?
A lot of comments are, " why didn't they just get on the ground ASAP but they were taking their time and doing checklists etc. I was thinking this plane is full of fuel and probably loaded to the max. an plane like this has a max takeoff weight and a max landing weight which is considerably less than the takeoff weight. That's why they have to dump fuel before landing . Nothing was mentioned about dumping fuel. Was it because dumping fuel would be very dangerous since an engine was on fire?
Thankfully this happened over land and not far out over the water.
i just scrolled your video ........ you must be an investigator or a pilot on the same plane ....... im not happy how people want to abuse a drama that can kill
@Aseem Nakarmi If you go back and watch Juan's previous videos you would know what kind of aircraft he has flown what his experience level is and what he is currently flying for the airlines.
@Some Random Guy No US airline has 777-300. Do you mean 777-300ER?
He has 40 years of flying experience, civilian, military and airlines. He's currently a first officer for a major airline in the US and flies the 777-300
Fantastic and insightful as ever, Sir: many thanks. Wonderful that no one hurt in the air or on the ground. What strange times for aviation! Thanks again...
When I was a kid I think it was in the late fifties in the San Fernando Valley an engine fell off a jet and landed in a school yard. The whole area came out to look at it. I don't recall about the rest of the jet. But it was shocking even back then. Just looked it up and yes a mid air collision.
I hate that Denver airport. Very good job.
I wonder how heavy were those parts. Would potentially deadly for any on the ground?
Hey Blanco, you keep an eye on them gauges next time out. No looking out the window and telling jokes. Those P&W's can blow anytime!
That fan blades around somewhere, its bound to be found by someone
excellent analysis
? Fuel load ?
nice and excellent information tks
Thanks Juan. Good report as always. As an aside, I had 5 engine failures in my 41 year career but only 1 was catastrophic - most of those happened before cell phones and the internet had been invented. So the bigger question - Did they get another plane for the trip to HNL before their duty time ran out? :-)
So here is the question.. had this failure occurred over the Pacific, halfway to Hawaii, could the vibration from the engine have caused the engine to fully separate from the wing, causing the plane to come down?
Great video
Ok, this engine shouldn't have failed, but accepting that this might happen, being prepared and designing for survival is remarkable. Well done to the designers and pilots for making this a survivable incident.
They had a turbulence alert for 14K to 22K feet when they took off. The engine blew at 13K feet, so is there any chance that rotor winds from mountain effect turbulence pushed too much air into the engine and caused a compressor stall, which might have triggered the turbine disc failure(s)? That was my first thought.
Lucky their not all dead!I won't be flying anytime soon. All these planes that have been parked....catastrophe will come! Esp. with that MAX and dream liner garbage.
@Chad Markz this video is about 777 tho.
@Aseem Nakarmi I don't recall saying anything about triple seven. 🙄 I said max and dream liner. Thanks
@Chad Markz lmao ok. the 777 is still the safest twin jet in the world for me. only has crashes because of missiles and pilot error.
@Aseem Nakarmi no. I just see reality. What most people forget is boeing have been outed!!! Exposed!!!!! Murderers. There will be more. Past employees have been crying out fir years as to what's happening inside. Everyone forgets tho till a plane comes down!
This 777-200 was fairly active tho. And explosion is no big deal. Looks like the media scared you.
Juan, what are your comments on Agent JayZ's opinion that this was not an uncontained failure? He indicated that, while a serious failure and scary, and cowling pieces came off, that the engine itself seemed to remain intact. Like both your channels and go to both for the straight info.
Why do you turn away from a damaged engine?
Props to cabin crew.
How are landings speeds determined when heavy?
"Stewardess tell the Captain that there is a problem with Number 2"
Hello, Juan. You won't know me, I'm [retired] CAL. Left JUST prior to the CAL/UAL merge. I retired from the B757/767 actually, and I never bid to the B-777 seats because? Well, seniority concerns/quality of life AND the destination/trip mix just never appealed to me at that time. THANK you, once again, for being a voice of reason to not only those of us "In The Know" but also to the lay-persons (or is it "lay-people"?) out there in the *"Inter-Web Land"* arena!
It seems obvious that if "uncontained" that the failure occurred in the turbine. As the bypass and compressor fans seem intact. A "contained" failure would mean a catastrophic combustion chamber explosion. This seems unlikely. It is far more likely that the failure was in the turbine. So, we will see; what the NTSB investigators have to say.
So tired of LameStream media saying the engine FELL OFF!! SHEESH!
Wow that gets the old blood flowing. Thank God nobody was hurt. When it happened I was told that it was right after TO. Wrong, amazing seeing those pieces fall. Somebodyfs guardian angels were working overtime. Great job all around, now it's going to get interesting. What in the world caused that kind of damage? Maintenance crew, stress fracture, FOD, gremlins, crazy looking creature out on the wing and nobody believing the future Capt. Kirk? Sabotage probably isn't a factor but God only knows what folks are thinking today. Thanks Juan.
Picture on Reddit and Imgur showing damage to central fuselage imgur.com/6lZBMYj I believe this is where 26000 gallons of fuel would have been on a transatlantic flight. Would that huge slash hole been caused by the compressor shaft? Would that have downed the aircraft. More pictures are being revealed from the starboard side now.
As somebody else mentioned, I was told this by a friend with whom I was walking my dog yesterday. I had seen odd news images of the front ring and honeycomb panels, but I hadn't known until she told me, that the engine "was still on fire" which I found strange. My immediate thought, like many others, was; I'll wait until Juan comes up with a preliminary! That video of the engine in flight is both disturbing, yet fascinating. As an engineer (not aeronautical) the overall, immediate, reaction was; ALL of the cowling is missing - significant, but I don't know why? The fan appears intact, is probably windmilling and without actually counting, it is difficult to see a synchronicity with either spool, but the vibration is horrific. The fire is bad, but certainly doesn't look like pressure fuel fed and appears to be in the 'hot' area of the engine. As an amateur, my gut says a compressor or even turbine BLADE has failed and somehow triggered a fuel vapour explosion inside the cowling, which is why virtually all the cowling has blown off. As always, Juan is quick to praise good work by crews and ATC and you can see why. With the exception of ATC stumbling over the initial Mayday call - which seems to me to be common - everybody did exactly what they should do. Juan also mentioned, obliquely, just how good the Triple Seven is all round. Great vlog Juan, as always.
The light on control panel . For engine -- a little bit hot -- was definitely flashing I bet a few were speaking jive .... lmao 🤣
Juan after watching the video of this Engine you can see one fan blade and part of another is missing ? and as always your the go to when we have aircraft happenings
Thank God that everything ended well! But strange as it may seem on the stock market, airline stocks are growing strongly !?
Thanks Juan, on the ball as always. Well done to the crew and ATC for getting it down safely. Scary one!!
I'm not a jet engine expert but my dad was a crew chief on a Republic Thunderflash, when I read that P&W is using hollow fan blades my mind went blank, how stupid could they possibly be?? They would never hold up.
The Colorado event appears to be strikingly similar to recent PW4077 fan blade-related failures in which inlets or cowling parts detached. These include an incident on Feb 13, 2018, involving a sister aircraft to the most recent 777-200 mishap, in which the No. 2 engine failed 30-min. before landing while en route from San Francisco to Honolulu. The NTSB cited shortcomings in Pratt's inspection processes for setting the stage for that accident. More recently, on Dec 4, 2020, the No. 1 engine on a Japan Airlines 777-200 lost a fan blade shortly after takeoff on a flight from Okinawa, Japan to Tokyo. In the wake of the 2018 incident the FAA issued a directive in March 2019 requiring initial and recurring inspections of the fan blades on the PW4000. It is not yet known if the blades involved in the United 328 event had been through this inspection. source-- aviationweek.com/mro/safety-ops-regulation/ntsb-fan-blades-fractured-ual-777-engine-incident
On 20 February 2021, a Longtail Boeing 747-412BCF, registration VQ-BWT, operating as flight 6T5504/LGT5504, had an engine failure above the village of Meerssen, shortly after taking off from Maastricht Aachen Airport on the way to John F. Kennedy International Airport. Dropped turbine blades lightly injured two persons on the ground. The plane was able to land safely at Liège Airport. The 747-400BCF was powered by PW4056 engines, a derivative of the PW4000 engine
Uncontained
Another Rolls Royce Trent problem with fan blade cracks? Pratt Whitney better get on this very fast!
Just pulled 4 777 fan cowls out of the Auto Claves.
Thank you very much for this. I especially appreciate your explanations of the reasons behind the actions taken.
Seriuos stuff here
With the fire extinguisher activated,windmilling can keep fire getting on..any measure to brake the blades once extinguishers are activated??on a turbo prop,once feathered,does the blades still windmill???
Looks like the cowling locks are in the open position.
Airliner jet engines are tested to destruction and the cowling must be able to contain the engine when it blows up ..... ? ..... Engine and cowling bits bombing down from the sky shouldn't happen ...... .
Can't see the entire engine from the video but it wouldn't surprise me if this ends up being a contained failure. That orange material surrounding the fan case is made from Kevlar and designed to absorb the energy from a slung blade. The vibrations alone from a fan blade failure at takeoff power could shake things enough to cause things to break, and the boundary layer airflow would take care of the rest. It's times like these that proves the aircrews are worth every penny that they earn.
The staggering thing is, later THE SAME DAY a 747 freighter had exactly the same issue departing Maastricht for the US! Fortunately noone killed but a couple of people got hurt on the ground. Both aircraft have Pratt and Witney engines, both uncontained failures, what IS going on?
Just an observation, it looks like the fan has a wobble like it lost a blade.
And again a P&W engined disintegrated today on a 747 in the Netherlands today...
Oh thanks god I was not piloting this plane otherwise I would had made a right turn into dead engine (smother turning) but it would had been a mistake, you just saved lots of life in the future.