I like this guy. You can tell he genuinely loves what he does and wants to help others learn more about it.

"We have some of the pieces" yeah, the rest flew out the back.

I gotta tell ya, this guy knows his chet. This guy is a true think tank technician

I'm 63 and still love to learn about jet engine's Thank you for your video's

Wow great video. Thank you. Looks like somebody must have taped over the Check Engine light.

Amazing that this engine did not suffer a "rapid unscheduled disassembly".

Ouch!! That's going to leave a mark on the turbine blades and wallet!

That nozzle damage looked familiar & it gave me an awful flashback! Great video; nice tour. Thanks. DD

I really enjoyed the video and found it very informative in terms of what state an engine can be brought back from and a bit of information about the work that’s done to get a borderline engine back into service. Very worthwhile effort.

I'm so excited I happened upon this channel! Fascinating stuff! Looking forward to catching up on some awesome videos.

So glad you're still doing these videos. Utterly fascinating! Thanks!

Enjoy the before and after videos. I’ve done a bit of restoration work and it always gives me a great amount of satisfaction turning a almost trashed project into a like new again item. Keep them coming.

You can just hear scotty yelling "She cannay take no more captain"..."push it harder!"

I worked for Garrett/Honeywell Engines for a lifetime. Put my hands on many engine parts. APUs & Engines, Combustors Mounts, housings Nozzle, Stators,etc. I started there as a Machinist, for many year's then into Quality. Seen so much. Love your channel

One of your best videos - I always wondered what "damaged" looked like!

Thank you. It is so rare to see something taken apart when it had been on the verge of blowing up. I sure can see how turbines can come apart so quickly when things go wrong. Great video.

We use them on the DDG and CG program. I was sitting on top the running turbine nacell aboard a missile cruiser working above when one one spit a turbine blade. It was similar to sitting stop a giant handgrenade. Parts were scattered around.

Working in the shipbuilding industry, The LM2500's were used for the main propulsion on FFG's the Oliver Hazard Perry class of fast frigates. It was my understanding the the LM2500's were for marine use. I believe they were also used on the Ageis Cruiser program.

Thank you, starfleet officer.

You are an endless wealth of knowledge and experience sir, i greatly appreciate and enjoy the content you create.

I always enjoy your videos but this one was particularly interesting. It's satisfying to see the "before and after". Thanks.

Excellent video, as always, thanks. Before and after shots are a great addition. Makes me marvel even more at after burner tests you've posted; screaming hot gas coming out the back, no parts flying out, no sneezing out the front, and it's meant to run that way. Wow, what an invention to work on.

Enjoyed that, it's more interesting than the serviceable stuff! Saw a turbine nozzle on a TPE-331 that was chewed up like the nozzle you showed. Really makes you realize how hot things can get in there!

Pretty gnarly to think about the lifecycle of a chiclet, particularly the path from its mama to the free world. Would be one heck of a gopro video. I didn't even think about the power turbine until you mentioned it at the end. This could seriously damage that too I suppose. What a (cool looking) mess. One last rivulet in this stream of conciousness, a timelapse of a teardown might be a cool and low-impedance method to capture that first stage of the refurb process.

Scotty - beam me up to this wonderful workshop. Very interesting video - as always. Great Thanks to you.

very awesome to see this, i work in the tool room at an arconic facility and ive worked on the molds and fixtures for these parts. also see them in their raw cast form, pretty cool to see it assembled and destroyed!

Lemme know if you need parts Jay, LM 2500 is our bread and butter. Talking stock, ill hit up Trevor. Cheers

WOW! Your video sound quality has improved 1000%! Good stuff AJZ!

That was one slaughtered Engine lol. Its cool to see the actual possible carnage when over driven

So many beautiful parts, every single one is high quality.

"Nae Cap'n, she canna tek mooch moore" Scotty, probably, just before the LM2500 blew its dilithium crystals all over the floor. Thanks Agent JayZ, this was a very interesting episode in your journey. How long do you think it was from the onset of the chunky emissions before they shut it down and how much longer would it have been if they'd waited for it to shut itself down?

Cheers, it's nice to get an insight into something specialized that I would never get to see otherwise

Your videos are always magnificent and you're super cool!

Great video. You make the complex understandable. Thank you for posting.

So much carnage! This thing was shut down? As-in- still running? Wowie.

Cool. Great explanation of blade locking devices. Great job.

wow, that has been thrashed. thanks for your show. always a pleasure to watch your machinations😁😁🚲👍

just praying for this videos never stop coming every week

crazy looking damage there. I’d hate to be near that thing the last time it was running! I’m sure you guys will work your turbine engine wizardry on it and make it as good as new again.

Other than having the scrap in one convenient to manage heap, this wasn't that much of a save. Still significant savings over the price of a brand new one certainly, but what you did for the used parts market will likely be felt for years. Thanks for letting us tag along AgentJayZ. I waz here and I waz impressed.

Cool. Great video once again. Loads of damage. Wow. Good job.

"More POWAAAH!" -Uhh Steve... have you looked at the ETG?

Live long and prosper AgentJayZ!

Fascinating to see. An added benefit of such damage is that one gets to see how it's designed on the inside. Hope those blades become educational tools! Now I have to see Star Trek again, from what I remember Engineering looked like NIF, but maybe that was just the second movie.

My god, just imagine the noise that thing was making in its final moments...

Many years/decades ago, I recall seeing some Olympus combustion chambers, plus other stuff, in an early episode of Dr Who. PS I was old enough not to have to hide behind the sofa - and I must have been working at R-R, as I was able to identify the bits.

Newification. I'm stealing that. Love the video quality.

We just had a TF34 come through our shop that over temped and blew out the last 4 stages of the compressor and stator assemblies. it looked gnarly.

As promised, I am reporting back on my visit to Brownsover Hall on 10th November for a presentation by Ian Whittle on his father's life and work. The event was held in the actual room that served as Frank Whittle's office during the war. It provided an entertaining and insightful glimpse into Whittle's life and, not surprisingly, reinforced the claim that he should be regarded as the sole inventor of the modern jet engine. That an RAF engineering apprentice from a working class background should produce such a revolutionary proposal in his final thesis, written in 1929 and based on self-study, continues to astound me. What I also found astounding was my first ever view of a cross-sectional arrangement of his LR1 bypass engine project, which he was working on before the end of the war. I'd read about it but never seen a drawing of it before: had it not been cancelled, it would have been years ahead of its time. I bought two DVDs, made some years ago, one of which I intend to send to AgentJayZ: he should be able to find a way to play it. There is a clip of Whittle's Augmentor No.4 aft fan/reheat system running in around 1944, which AgentJayZ might find interesting.

You have to tell the owner of that engine to not let the wild Canadian hamsters loose around the inlet. They like to chew metals and they are about 2X bigger than a moose.

Red dust on everything, I wonder if this engine lived in the West Texas oil fields. Super cool video, thanks for sharing.

I don't know much about these things, but I am quite surprised that no thermal probes are incorporated to warn of over temperature and thus potential damage conditions being met....seems like a really simple and effective way to prevent a very expensive drama...

This video took me back to a and p school years ago. My group had to disassemble the hot section on a timed out phantom engine. We were the first to take apart the engine since it was retired. Our first sign of carnage was melted metal particles in the exhaust. After going deeper, the turbine blades were as bad or worse than your blades. Thank goodness the phantom had dual engines for redundancy. Since then, I never sit inline with the hot section on a jet aircraft in case something were to let back there. Have you or your company ever worked on JT-8D engines? Those were the engines I worked on the most back in the day...

12:40 Yea, you can have all the sophistication you want in vibrational analysis equipment, temperature monitoring etc. It still doesn't stop the one idiot worker from overriding/cancelling it when its halting production. I work in industrial motors, alternators, etc... The worst I have seen was a 3.3KV 1000KW motor that came in for repair. When we took it apart, the balls in the bearings were literally welded to the inner race, nothing was salvageable, despite it having everything mentioned above. The balls in the bearings were about the size of a baseball for size comparison.

Start up is probably one of the most dangerous times for a turbine. Pilots watch itt temps until the engine spools up completely. Primer1driver had his itt go out of range on start up due to some bees that decided to build their nest in the inlet area of his engine. He now has a decal of a bee 🐝 painted on his engines to remember the expense they cost him to have the engine overhauled. If a turbine is managed properly guys like agentz most of the parts get to stay and just have clean up done with minor repair or replacement of parts that are out of tolerance.

Dear AgentJayZ, I've watched several of your videos. Thank you for your superbly illuminating demos & explanations. Very nice personal delivery style as well. I was wondering if you could somehow increase the closeup zoom on surfaces and textures of handheld parts, by say a factor of 10 or 15. In "Turbine Engine Heat Damage", I would have benefited from being able to see the blade damage, discoloration, deposits, etc. in greater detail /higher resolution. This is by no means a complaint, but only a request. I enjoy the presentations very much. Thanks and please keep up the great work. Love it.

Super video thanks Jay

Excellent vid.

Hey, that looks like a compressor case from a LM 2500! Rad

Hey AgentJayZ, thanks as always - fascinating post-mortem. Interested in what considerations would you be providing the customer with for re-fitting the engine back into work? If shards of red hot steel were flying out the back and into a power turbine, what will the customer have to do there - do you overhaul power turbines? Dooes your company provide onsite services after repair? Little but aside from the norm, but presume you dont want the thing back next week for repairs again so is there any kind of onsite professional service to ensure success when put back to work?

You do a respectable job I like it

What did the operator do wrong to cause that kind of damage? How about a video on how not to operate a gas turbine.

8:00 Those NGV'S are fine, nothing a little blending won't fix. 😏

35k HP... probably gave closer to 40 or more before it was shut down. (( Just a wild guess... stuff got a bit toasty. )) Thanks for sharing!

Overheated and blown apart, very cool.

Great video!

Balancing a disk is very important thing. I know of specialized equipment designed to do just that. Armored wall vessel containing all the drive motors spinning a disk well above maximum speed that it will ever experience in real life in partial vacuum. It took 24 hours for the disk to coast to complete stop after hitting an E-Stop. The one time when the disk came out of the test assembly and penetrated the armored enclosure, it exited through the concrete wall and traveled another 40 meters in dirt away from the building. The test room was located below ground level just in case that happened. It took a metal detector and a backhoe to dig it up. Another example of that piece of equipment blew out a disk last year in the one facility located in one of the northern states. I heard the damage was extensive.

Wow, I wonder what the efficiency was right before it was taken out of service. After refurbishing, this engine should achieve around 38% efficiency?

Awesome video! Thanks for all of the information! I would love to get a blade if it is possible?! Thanks for making the videos

Definitely had a high heat moment! I too would like to have one of those turbine blades, perhaps you could talk the owner into abandoning them and you could sell them to us all and donate the money to your next charity?

Very interesting to see the damage and a bit more inner anatomy that usual of the parts. 1:25 The stators half way up are bigger and further apart than the stators on either side. What is the reason for that?

I've mentioned this before, but on Saturday 10th November, I will be going to an event at which the speaker will be Ian Whittle, the son of the late Air Commodore Sir Frank Whittle. The event is being held in the country house, now a hotel, which, during the war, housed Whittle's office. I will report back.

Another dumb question: It looks like the first 6 sets of stator blades are variable pitch and the last however many are not. Whats with the 8th set that are so much wider than the first 7? I'm guessing the variable pitch stator blades have progressively less variability as they go from the inlet towards the compressor end and the 7th could be variable but the change would be so small it just doesnt make sense to add it. It looks like theres a larger gap between the 8th and 9th set of compressor blades but the blades themselves look similar. Gotta be something special about that 8th stator set (hope I counted right).

Great vlog, tnx!!!

great video. if you do contact the customer could you get the story of what happened ? i wonder if it was the result of a hot start

Ty, awsome video.

An old timer told me those variable stators use to get stuck all the time and we're a pain in the ass

Show the damage of bird strike if you have chance,thanks for uploading these interesting videos.

Awesome to see finally, the damage to the rear frame is amazing. Was that impact damage or heat and oxidation damage? I've seen aluminium sheet look like that after a shed fire. What part of the engine is irreplaceable, where if it goes the engine is ruined? If you crack a block on a piston engine then even if you fix the engine it's not really the same engine anymore. Is there a part like that in jets where it's not so much fixed as the other parts were salvaged and used to make a new engine?

5:27 There is a stage 1 blade liberation right there. Most, if not all, of the downstream damage came from that one blade right there.

More failure/failure mode analysis! Be my jet engine AvE.

I've read that the engines in the MiG-25 would be severely damaged when they'd push it up around Mach 3. I've always wondered how they would fail. It's just thermal breakdown of the components and it starts destroying itself?

That's pretty neat.

Do you ever see engines that have flown through volcanic ash? I’m curious how much damage that does to various internal components.

Seems like there’d be sensors present to prevent those over heat failure events

Thank you!

Excellent informative video as always! I'm intrigued by the compressor stator vanes half way down the compressor stator.....they look too big and they are hollow.....what's the story with those?

Great vid! Quick question about the fuel control: once you've put an engine together, do you have to do any sort of calibration to the fuel control before you test it? Or are they designed in such a way that they can only deliver the correct amount of fuel?

When I worked a a welder for GE we called them blades buckets

Hello AgentJayZ. Another great video. Would you surmise on the turbine that it could have been a runaway because the controls would have prevented excess fuel flow.

How was that even running? Id think that it would blow itself up or just not work? Also where is that jet used that it takes that much abuse? Cool tho!

You said "shut down just in time". How much time are we talking about? Seconds? Many seconds? Minutes? How long does it take to do so much damage?

Thanks for a fascinating video. Do the LM series engines contain any rhenium in the blade alloys? I read that the recovery of this metal from replaced parts is critical in the jet engine industry, due to its scarcity. I'd be curious to hear about this, if you have any dealings with parts containing super rare elements.

Thank you so much

I bet a good blacksmith could make some pretty awesome knives out of those broken blades.

As usual excellent video. At 14:00, the tool you inserted in the combustor is for maintaining the concentricity of the turbine? Also, would you make a video for this turbine installation rig? Thanks for your valuable time.

What do you think how much would the thrust of jet engine would be affected by using adulterated fuel? And do all jet engines have variable-geometry stator blades for compressor?

Horrible turbine buckets before. Beautiful.

If I had a nickel for everytime I see the wrong tags on parts, I'd be retired. New techs just don't get how important it is to follow procedures.

Hi there, I presume the egt's were in the yellow to red, why operate an engine beyond the green? I am only an enthusiast but fairly technical and this is my thought when seeing this. A very grim reveal of machinery abuse but a special insight for many of us enthusiasts who would not know what it looks like without the efforts of someone who has gone to the trouble to share this. Thanks and kind regards, Duncan, South Africa