These guys are the unsung heros of flight travel. He only has to miss something and the consequences are un unimaginable. Great watch. Just pointing a camera at these guys at work is all the screen entertainment I need!
I heard that the technical documentation for a 747 (yes this was a 777) weighed as much as the entire aircraft. Imagine all the parts and assemblies... all the manufacturing specifications, design drawings, assembly details, test documentation, maintenance instructions, troubleshooting guides, checklists, engineering change approval/documentation, process tracking ... Of course, much of that will be digital today.
In 1991 i started working at JFK as a ramp worker. The engines didn’t have actuators. All manual, and a 2-3 man job opening those things for maintenance. Unless a quick check, meant that plane was grounded for a few hours. Come a long way 👍
Excellent, wonderful, people dont realise how much work goes into just opening the cowling of an aircraft engine, great engineer, and a bit funny too when you uses your hands and legs to close the cowling, good job
Crazy how close the engines are to the ground. Looking at planes from a far, I never really noticed they only really hang about 4 ft above ground until seeing videos of people up close with the engines.
Damn! What a fascinating video. I would have liked to have seen more of the internals, but I guess that’s not what this video is about. The fact they have their own inbuilt mechanism to lift the external cowling is something I wasn’t expecting. Then to see the engineer lay on his back and push with his feet to get them back into position is quite hilarious! Thanks for posting.
Wow, not only must you have the technical knowledge to open up one of these things, you also have to be pretty fit and strong to do it. Strong back, arms and legs required. Oh, and thank you for this awesome video.
BigIronTV Is it hard to learn. I`m sorry but I`m a little negative, always been. I heard that there is a final verbal exam. I have a slight stutter I hope I manage the stress at that time.
It requires effort but not harder than learning anything else. There are two certificates available. One is the Airframe and the other is the Powerplant. Some people get one and not the other. This will greatly limit your work options though so it is best to get them both. The testing process is that you are required to complete either on the job experience or a certified training program. From the OJT you will get someone that is qualified to verify in writing that you have the required OJT. From the training you must pass the test at the end of the course. With either the OJT letter or passing test score you then go to the FAA and request permission to take the certification test. They will issue the permission and then you have a limited amount time to schedule and take the test. If you do not do the test during this time then you will need to reapply for permission to test again. Once you have the FAA permission to test you will need to find a designated examiner and schedule a time for an Oral Practical exam. For the oral part the examiner will sit with you and ask question of their choosing from a list of topics. If you do satisfactorily on the Oral then they begin the Practical exam. This is hands on where the examiner will tell you to accomplish specific tasks and then observes to see that you know how to find and use the correct reference data in the manuals and can follow the manual instructions to accomplish the tasks.
BigIronTV The oral part of the exam already scares me because I have a slight stutter. How often does an airplane require body work? I`m sure the other mechanical parts do so.....
Mate im pretty sure that's a good thing...Now you know you won't die in the middle of the open atlantic ocean because your stupid mind thought it would be cool to buy a plane with no covers xD
+Flint and Steel Survival Actually these are the largest jet engines. Most jets do not have engines this big. They are GE90-90B engines. Also I am small so that makes them look extra big.
Very similar in physical dimensions but quite different inside. More that just a derate. The GE90-90B that we have can be upgraded to a -94 www.geaviation.com/press/ge90/ge90_20010510.html. en.wikipedia.org/wiki/General_Electric_GE90
Thanks for sharing. 1 grateful feedback. A running commentary would be nice! Always wanted to know what the levers & latches (big & small does) and why! Thank You.
might be fire hazard or make stuff oily that aren't designed to be oiled, like damaging gaskets orings or seals... and might increase drag if it leaked out and streaked across panels who knows, itd probably be fine, but the insurance of a sticky latch that needs to remain closed is calming
+Geoffrey Gallaway Oil drain vent. Oil leaking around seals during operation is captured and directed through pipes to the vent so it does not collect in the cowl and cause fire hazard.
Sounds like some of those latches could use a shot of WD 40. Of course for the aircraft industry WD 40 would be relabeled with a twelve digit part number in a solid grey can and cost $45 a can.
Aerokroil it's $30 a can, it wouldn't surprise me if that's what they use. Once a year they have a buy one get one free so that's how I justify buying it, but even at $15 a can it's still triple what most cost.
The Aerospace company I worked for (my father was GM, then President) engineered, designed and manufactured, and still does...under a new name, was bought by another company...the hydraulic opening module for the cowling and reverser doors, mainly for GE and RR. I grew up in that environment and started working there cutting grass, then moved to assembly and test then after college was contract administrator until I moved on as a practicing CPA. They design and manufacture (from bar stock to out the door) valves and subsystems on commercial and military aircraft, for instance the thrust reverser control modules and ramp control modules on the C-5, the now retired C-141 thrust control module and many many valves (mostly hydraulic and some pneumatic) on engines and subsystems. Always cool to see something like this in action! Walking through the C-5 at an air show and seeing the product on the plane brings so much pride and memories of my fathers hard work and sacrifice and all the employees who loved what they did!
I don´t want to be too nit-picked, but this is not the way to open the cowls on a GE 90 baseline engine. The maual tells you to follow a specific order for the latches.
The correct order is not that important as long as you don't go just random. The T-handle (the smaller GE90 doesn't seem to have it?) operates easier when opened earlier in the sequence. What concerns me more is that he doesn't latch any of the hold open rods.
Wow. I have never seen this detail before. It looks like a hard job just to open it up and take a look. It is easy to forget just how big those powerful engines are. Every latch is critical and must be secured. At 10:25 : I was wondering, I that standard Boeing procedure to lie on you back and use your feet to close the cowlings? Was it planned to be that way?
can i ask ask you something?what is the correct to cowl open order , turbine fan engine i meanfirst. inlet cowl second fan cowl third reverse thrust fourth core cowlorfirst. inlet second fan third core cowl fourth reverse thrust what is correct which one?????sorry i can't english well
Hope in future technology, no more lacthes or whatsoever alike for those big engine, it suppose to have push button mechancisn with hydrolics power. Easier and faster
Forget about everything else, engineering behind that locking mechanism alone is mind blowing.
And the price for the locking mechanisms is mind blowing too:), greets from the spare parts logistics
I can do it eyes closed. Amateur.
Ikr he looks like a jedi knight
You can pick one up from your local hardware store.
You need to see the mechanisms that operate the passenger doors.
I did not know the 777 had so many locks, people appreciate the engineers and mechanics that guarantee your safety
I flew on 777-300 ER from Athens Greece, Emirates Airlines it was awesome, Thank you for your service.
And the latches have to be locked in a specific sequence on this engine. .
Doesn't matter how high you raise an engine off the ground-- a mechanic will still end up on their backs to work on something.
That's Murphy's law, drop a tool and it rolls out of reach,🤣
Thank you for NO music. Loved all the sounds...
Yes I agree....... Great comment Faraz 👍
kecelakaan tol cipali
Agree..... And none of the BS of 'if any of the latches came undone in flight the entire aircraft would crash type of crap'
With stuff like this the sound is just as important. When I'm seeing something works I want to hear it too! No music
These guys are the unsung heros of flight travel. He only has to miss something and the consequences are un unimaginable. Great watch. Just pointing a camera at these guys at work is all the screen entertainment I need!
*heroes
I never cease to be amazed ... and impressed by engineering, technology and competence.
Thank you for sharing this for us.
I heard that the technical documentation for a 747 (yes this was a 777) weighed as much as the entire aircraft.
Imagine all the parts and assemblies... all the manufacturing specifications, design drawings, assembly details, test documentation, maintenance instructions, troubleshooting guides, checklists, engineering change approval/documentation, process tracking ... Of course, much of that will be digital today.
people like him that make flying safe but are so dedicated to make sure everything is locked up tight and correctly
Tom William No shit Sherlock....
Legend has it, he's still pulling levers.
Specially the one before the last one is giving him a hard time securing the latches
More videos like this, please! We never get tired of watching. Thank you very much for this awesome material
In 1991 i started working at JFK as a ramp worker. The engines didn’t have actuators. All manual, and a 2-3 man job opening those things for maintenance. Unless a quick check, meant that plane was grounded for a few hours. Come a long way 👍
Cheers for that Paul 👍
One false move and off comes a finger, kudos to these highly skllled engineers who ensure our safety in the air.
Excellent, wonderful, people dont realise how much work goes into just opening the cowling of an aircraft engine, great engineer, and a bit funny too when you uses your hands and legs to close the cowling, good job
That is the only way to do it, in the factory that is the method the mechanics assembling the engine use to close the cowls as well.
I love the lying on your back maneuver where you push the doors closed with your legs and secure them with your hands!
Crazy how close the engines are to the ground. Looking at planes from a far, I never really noticed they only really hang about 4 ft above ground until seeing videos of people up close with the engines.
Complex piece of machinery for sure,and amazing how it all works
Thanks for showing✅
Real hero...maintenance personel. Everbody must kiss their hands.
This what my dad used to do when he was still alive fixing planes and fly them . He was in the airforce . 👊🏽🤩😎🇵🇭 he also fought in Vietnam war
Shut the fuck up ! ! ! ! !
@@X2O8MZV9 You boy are a FIRST CLASS JERK!
Blessings Efren, I bet your dad told you great stories about aeroplanes. May he rest in peace.
@@X2O8MZV9 you have a lot of issues.
Bündnis öliger Schurken e. V. are you frustrated because of your name? Who gave you this bullshit name? 😂😂
Damn! What a fascinating video. I would have liked to have seen more of the internals, but I guess that’s not what this video is about. The fact they have their own inbuilt mechanism to lift the external cowling is something I wasn’t expecting. Then to see the engineer lay on his back and push with his feet to get them back into position is quite hilarious! Thanks for posting.
Wow, not only must you have the technical knowledge to open up one of these things, you also have to be pretty fit and strong to do it. Strong back, arms and legs required. Oh, and thank you for this awesome video.
I`m 46yrs old and I wanna go back to school for aircraft maintenance. SO awesome to be able to work on them giants
Do it!
BigIronTV Is it hard to learn. I`m sorry but I`m a little negative, always been. I heard that there is a final verbal exam. I have a slight stutter I hope I manage the stress at that time.
It requires effort but not harder than learning anything else. There are two certificates available. One is the Airframe and the other is the Powerplant. Some people get one and not the other. This will greatly limit your work options though so it is best to get them both. The testing process is that you are required to complete either on the job experience or a certified training program. From the OJT you will get someone that is qualified to verify in writing that you have the required OJT. From the training you must pass the test at the end of the course. With either the OJT letter or passing test score you then go to the FAA and request permission to take the certification test. They will issue the permission and then you have a limited amount time to schedule and take the test. If you do not do the test during this time then you will need to reapply for permission to test again. Once you have the FAA permission to test you will need to find a designated examiner and schedule a time for an Oral Practical exam. For the oral part the examiner will sit with you and ask question of their choosing from a list of topics. If you do satisfactorily on the Oral then they begin the Practical exam. This is hands on where the examiner will tell you to accomplish specific tasks and then observes to see that you know how to find and use the correct reference data in the manuals and can follow the manual instructions to accomplish the tasks.
BigIronTV The oral part of the exam already scares me because I have a slight stutter. How often does an airplane require body work? I`m sure the other mechanical parts do so.....
BigIronTV Is the oral exam in front of the class or 1 on 1? I`m really nervous about it considering my slight stutter.
Damn this mechanic looks so profesionnal ...
(no dungarees or overall, no cap... just some gloves )
Incredible how complex these aircraft are,
This is totally fascinating! Thanks for the upload.
thank you for the tutorial, now i'll be able to repair my 777 engine as well
I am glad to see it is not easy to open it.
777 engines are the best in the world. Love those massive GE90 engines
Holy crap that engine is massive!
This guy obviously knows his stuff
Os conectes on The Apu or batery DC?
@Demo show us yourself doing it then if it's that easy, and tell us exactly what he was doing every step of the way.
@Demo there's one in the video. use that one.
I hope so.
@@halowraith1 isnt this video pretty much instructions tho, and why would he need to know all the parts for?
I like how the 777 cowl doors are electronically controlled unlike the ones on the A330
Thank you for the highly technology grandsons of Jafeth.......you're blessed people......God bless you...
එල
Power liftgate, this must be the premium trim level
🤣
Qué buen vídeo!que capacitación este hombre,sin dudas una gran responsabilidad,nada puede fallar
No wonder these damn engines cost millions of dollars a piece ! it must be a nightmare keeping these awesome machines running properly
Very interesting! Thank you for sharing these videos!
It’s complicated just to open the dam hood. I will never buy this jet.
@@superskullmaster hey fool. Ever heard of a word called SARCASM?
Andre3K - Wow....
Andre3K you clearly don’t get it
Glad your not my mechanic sounds like you sir have a good attitude, I bet it gets easier after you learn.
Mate im pretty sure that's a good thing...Now you know you won't die in the middle of the open atlantic ocean because your stupid mind thought it would be cool to buy a plane with no covers xD
0:20 Looks like he's gonna steal it ^^
Attention airlines, make sure that man is paid well.
Thats why I started doing work out. This is my job and it requires strength. Im just 65 kg skinny guy.
So a lot of interesting things can be done by walking around the 777 while waiting for your flight. And without a single tool!
a little piece of carpet would make it alot more comfortable
Legend has it, he is a good wing man.
Crazy how big everything is on a plane! Almost all the planes I have flown on were tiny!
+Flint and Steel Survival Actually these are the largest jet engines. Most jets do not have engines this big. They are GE90-90B engines. Also I am small so that makes them look extra big.
what about the ge 90 115bs?
Referring to physical size.
BigIronTV
So do they have the same dimensions but instead of putting out 115k thrust they are simply derated to 90k?
Very similar in physical dimensions but quite different inside. More that just a derate. The GE90-90B that we have can be upgraded to a -94 www.geaviation.com/press/ge90/ge90_20010510.html. en.wikipedia.org/wiki/General_Electric_GE90
I really liked the video, thanks!
Congratulations for video ! Wath is the reason of the inspection ?
Thanks for sharing. 1 grateful feedback. A running commentary would be nice! Always wanted to know what the levers & latches (big & small does) and why! Thank You.
awesome. thank you for the video
I think you close the bifurcation latch and t handle before, I think they are the last to close
I was a mechanic and flight engineer. This is a first officer filling in for a mech. Dont know if he is qualified to sign off any thing.
I feel for the pilot for his preflight check.
You're blessed people indeed....Amen
Now i know how to change the oil of my 777. Thanks
I think aeroplane is the greatest invention ever by human.
Well done for the workmen... speedy and correct!
Thank you very much to Rolls Royce and GE for manufacturing the engines like this
Mickey cowling for all engines on 777 airplanes were designed by Boeing
DANG,....it ain't like poppin the hood on a grocery getter,...that's for sure !! Nice vid.
You really have to want to get in there to go through all of that. Thanks
You got to make sure those latches lock into place if not got to get sheetmetal mechanics involved or due a light repair to it
LOL
I'm relieved to know that one latch doesn't hold the whole thing together.
Imagine opening that 1 latch and the engine dislodges from the wing, only thing remaining are the open cowlings still stuck to the plane Haha
By APU in On or eletricall by system ?
Cool vid! I did not know they have actuators on the cowls.
+MrBen527 Thanks
I would think you need them with the size of the engines on the Triple 7.
OOOOH GOD WHAT A GREAT JOB UR DOING WELL DONE AND GOD BLESS YOU YOU GOT A SUB 🖒🖒🖒🖒
The process is opening in on or by company off APU????
Latches and levers could use some oil 😉😁 AWESOME VIDEO!
might be fire hazard or make stuff oily that aren't designed to be oiled, like damaging gaskets orings or seals... and might increase drag if it leaked out and streaked across panels
who knows, itd probably be fine, but the insurance of a sticky latch that needs to remain closed is calming
WD40
@@danielpratama2945 deep creep is better. kroil is pretty terrible for value.
Unless it is in the aircraft maintenance manual it is prohibited.
This was a most interesting video,thank you.Fascinating,those big jet engines,and they have a great sound too!
A very responsible job. Only needs one to come undone in flight
Masterpiece of engineering
This guy behaves like burglar :) trying to break the house locks. respect
Attractive video ! Thanks for sharing.
What is the small protrusion on the under side of the cowling that looks like an exhaust pipe for?
+Geoffrey Gallaway Oil drain vent. Oil leaking around seals during operation is captured and directed through pipes to the vent so it does not collect in the cowl and cause fire hazard.
Did he close properly 😳😳😳
The best part is where he uses his feet to push the cowels up while closing the latches.
Just show me where the drain plug is located to change the oil and where to add antifreeze.
Is it possible to deploy engine thrust reverser accidently during mid flight? Such as on this B777?
Good job mr. A&P /AMT on 777 cowling/TR opening. ;-) thanks.
not like car to open the engine but this beast opens with hydraulic wow
kvalitet slike je odlican Thank you for NO music. ..jasno pise filter goriva je zamenjen a ne ulja kao sto stoji u nekim kometarima
That locking mechanism is cool thou
Just hand bang on the part to close it???
Sounds like some of those latches could use a shot of WD 40. Of course for the aircraft industry WD 40 would be relabeled with a twelve digit part number in a solid grey can and cost $45 a can.
Aerokroil it's $30 a can, it wouldn't surprise me if that's what they use.
Once a year they have a buy one get one free so that's how I justify buying it, but even at $15 a can it's still triple what most cost.
The Aerospace company I worked for (my father was GM, then President) engineered, designed and manufactured, and still does...under a new name, was bought by another company...the hydraulic opening module for the cowling and reverser doors, mainly for GE and RR. I grew up in that environment and started working there cutting grass, then moved to assembly and test then after college was contract administrator until I moved on as a practicing CPA. They design and manufacture (from bar stock to out the door) valves and subsystems on commercial and military aircraft, for instance the thrust reverser control modules and ramp control modules on the C-5, the now retired C-141 thrust control module and many many valves (mostly hydraulic and some pneumatic) on engines and subsystems. Always cool to see something like this in action! Walking through the C-5 at an air show and seeing the product on the plane brings so much pride and memories of my fathers hard work and sacrifice and all the employees who loved what they did!
The 777 is massive
What is the little exhaust pipe for in front of those vents at 10:21?
It is the oil drain mast. All of the oil seals have drain lines attached so any seepage of oil is directed down to the drain mast .
I don´t want to be too nit-picked, but this is not the way to open the cowls on a GE 90 baseline engine. The maual tells you to follow a specific order for the latches.
Markus Pristonig okay then
The correct order is not that important as long as you don't go just random. The T-handle (the smaller GE90 doesn't seem to have it?) operates easier when opened earlier in the sequence. What concerns me more is that he doesn't latch any of the hold open rods.
Hope it's some reliable locking system on all those stuff he closed only by hand !!!!
I know that B777s are equipped with engines named GE90-115B, is this another type of engine or maybe typing error in the title of video?
Maintenance on the A350-900, flying over the Pacific Ocean does the salt water air have an effect on the engines?
1st he must release the pressue in the PDOS.
2nd release both V- band lathes.
3th release the latches, from bach to fwd
damn that's a lot of steps to open that cover
was that rattling sound the inner turbines windmilling or something? thanks for the upload
Check that 7th Fetzer valve. Could be ball bearings too. Its all ball bearings these days.
Very interesting video, cheers mate!
What exactly did u check?
Good job 👍✈
You closed revers in process on ?
Or dispers de off to apu?
They should have a scope port for this check ✔️
Wow. I have never seen this detail before. It looks like a hard job just to open it up and take a look. It is easy to forget just how big those powerful engines are. Every latch is critical and must be secured. At 10:25 : I was wondering, I that standard Boeing procedure to lie on you back and use your feet to close the cowlings? Was it planned to be that way?
Very interesting question, as the feet assist procedure requires some acrobatics skills XD
wow , so nice i'm thrilled to see that
can i ask ask you something?what is the correct to cowl open order , turbine fan engine i meanfirst. inlet cowl second fan cowl third reverse thrust fourth core cowlorfirst. inlet second fan third core cowl fourth reverse thrust what is correct which one?????sorry i can't english well
Very challenging,I like it!
Знали бы вы как слоны работавшие на совковых самолётах завидуют такому удобству обслуживания..... ЭТО ПРОСТО СУПЕР !!!!!!!!!
Hope in future technology, no more lacthes or whatsoever alike for those big engine, it suppose to have push button mechancisn with hydrolics power. Easier and faster
That is 767 because it’s different land gear
YOU'RE JUST PERFORMING A WONDERFUL MIRACLE I RESPECT YOU AND YOUR GREAT JOB THANKS YOU BUT 11:01 TOO SMALL 👍👍👍👍👍👍👍👍👍👍👍