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31-01-2024 21:51
James_
★★★★★
(2015)
keepit wrote:
google says a b 737 engine costs 15 mill. It's not that simple though.



I did a quick search and saw $10m to $15 mil. The maintenance they require as a minimum is known. Everything will need to be FAA certified. If what I read is right,
about $1,000 in maintenance for every 1 hour of flight time. And that 76% of that money spent is on the engines. That's $750 for maintenance every hour.
1,000 hours = 1,000 x 750 = $750,000. That's 4 days and 4 hours of flight time.
31-01-2024 22:57
Into the NightProfile picture★★★★★
(21535)
James_ wrote:
keepit wrote:
google says a b 737 engine costs 15 mill. It's not that simple though.



I did a quick search and saw $10m to $15 mil. The maintenance they require as a minimum is known. Everything will need to be FAA certified. If what I read is right,
about $1,000 in maintenance for every 1 hour of flight time. And that 76% of that money spent is on the engines. That's $750 for maintenance every hour.
1,000 hours = 1,000 x 750 = $750,000. That's 4 days and 4 hours of flight time.

You are making up numbers again. Argument from randU fallacy.
You are also completely unfamiliar with the FAA.

The FAA does not certify anything except whole aircraft. For production aircraft such as the Boeing 737, the aircraft is type certified. All Boeing 737s, once completed and tested by Boeing, are certified aircraft. The FAA does not need to examine every aircraft and certify it.

Components, such as engines also are type certified. Once the manufacturer builds and tests one, they do not need the FAA to examine it. It is already certified.

Other components are NOT type certified. They are simply approved for use. These components are marked as TSO (technical standard order). The FAA simply requires these parts to meet certain minimum performance standards. Some of these (such as bolts and rivets) come from other agencies, such as the Navy or Army.

You can even use a common hardware bolt or screw on an aircraft and get it approved by the FAA. Mechanics often manufacture a part because buying one is too expensive or simply not available. These get approved for use on type certified aircraft using a 337 form and log entry.

For example, I myself have manufactured parts for my Cessna 150 (a type certified aircraft), and installed them as a major alteration through a 337 form, including a rudder horn modification, a cargo bay alteration, avionics changes, a replacement instrument panel, a modification for throttle linkage, a modified fuel tank (improved venting), changes in aircraft lighting systems (LEDs now instead of those dim bulbs that keep burning out!), replacement wingtip fairings, and new radios (ADS-
. Many of these didn't even require a 337 form. I simply approved them for use using my authority as a mechanic and as a pilot.

I've worked on Boeing 737s. They do not require anywhere near the time for mechanics as you say they do. Most of the work mechanics do on these planes is annual inspections and airframe repair. You want to know why they are so fast at changing a blown tire? They've done it so many times! Indeed, it's a wonderful aircraft to work on. Almost everything is easy to get to and maintain.

The various jet engines available on these aircraft are all easy to maintain, typically only requiring the annual inspections (when the oil is changed, like any engine), and occasional cleaning (we use walnut shells for that). That is also usually done at the annual inspection.

Frankly, the biggest job in the annual inspection is removing the seats and interior of the aircraft and putting it back again when finished.


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
Edited on 31-01-2024 23:04
01-02-2024 12:08
James_
★★★★★
(2015)
ITN, I worked for an FAA repair station. We repaired engine parts. The FAA had certain criteria that we had to meet for the facility I worked at to be certified.
After the fiasco with Boeing, I wouldn't be too sure about what the FAA does. It's possible that very little of what the FAA does requires an actual inspection.
Edited on 01-02-2024 12:11
01-02-2024 20:36
Into the NightProfile picture★★★★★
(21535)
James_ wrote:
ITN, I worked for an FAA repair station.

Stop making shit up James. You never worked there.
James_ wrote:
We repaired engine parts.

You never worked on engine parts or engines.
James_ wrote:
The FAA had certain criteria that we had to meet for the facility I worked at to be certified.

TSO.
James_ wrote:
After the fiasco with Boeing, I wouldn't be too sure about what the FAA does. It's possible that very little of what the FAA does requires an actual inspection.

Pivot fallacy. No annual inspection is required of the FAA.
Congress oversees the FAA.


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
01-02-2024 23:09
James_
★★★★★
(2015)
Into the Night wrote:
James_ wrote:
ITN, I worked for an FAA repair station.

Stop making shit up James. You never worked there.
James_ wrote:
We repaired engine parts.

You never worked on engine parts or engines.
James_ wrote:
The FAA had certain criteria that we had to meet for the facility I worked at to be certified.

TSO.
James_ wrote:
After the fiasco with Boeing, I wouldn't be too sure about what the FAA does. It's possible that very little of what the FAA does requires an actual inspection.

Pivot fallacy. No annual inspection is required of the FAA.
Congress oversees the FAA.



Periodically the gas turbines need to be disassembled. Even the rotor blades that goes on the compressor or the gas turbine might need to be removed and repaired. And then they can be mounted back in the rotor housing. They a bicycle without spokes.
They use platinum alumnide as the outer coating (exposed to high heat). To get that to bond to the alloy the rotor housings and blades are made of, nickel is used as an intermediary as it bonds to both alloys while neither alloy will bond to the other.
And this might help to explain why on a plane like a 737, it might cost $600 per hour per engine in maintenance.
02-02-2024 01:01
keepit
★★★★★
(3038)
itn,
It just occurred to me that if you were a student in the kind of classes i've taken you would flunk and be asked to leave the class.
Is there anywhere in the world where your train of thought would be acceptable?
02-02-2024 02:13
Into the NightProfile picture★★★★★
(21535)
James_ wrote:
Into the Night wrote:
James_ wrote:
ITN, I worked for an FAA repair station.

Stop making shit up James. You never worked there.
James_ wrote:
We repaired engine parts.

You never worked on engine parts or engines.
James_ wrote:
The FAA had certain criteria that we had to meet for the facility I worked at to be certified.

TSO.
James_ wrote:
After the fiasco with Boeing, I wouldn't be too sure about what the FAA does. It's possible that very little of what the FAA does requires an actual inspection.

Pivot fallacy. No annual inspection is required of the FAA.
Congress oversees the FAA.

Periodically the gas turbines need to be disassembled.

Nope. They don't need to be disassembled. Indeed, they can't. They are cast as one piece.
James_ wrote:
Even the rotor blades that goes on the compressor or the gas turbine might need to be removed and repaired.

Easy job for the compressor. You cannot replace a blade on the turbine.
James_ wrote:
And then they can be mounted back in the rotor housing.

You don't need to remove the compressor to replace a blade.
James_ wrote:
They a bicycle without spokes.

A jet engine is not a bicycle.
James_ wrote:
They use platinum alumnide as the outer coating (exposed to high heat).

No such material.
James_ wrote:
To get that to bond to the alloy the rotor housings and blades are made of,

Those are made of different materials.
James_ wrote:
nickel is used as an intermediary as it bonds to both alloys while neither alloy will bond to the other.

No intermediary is required. The compressor blades are cast as a unit. Replacing one is simple.
James_ wrote:
And this might help to explain why on a plane like a 737, it might cost $600 per hour per engine in maintenance.

Argument from randU fallacy. You are making up numbers again.


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
02-02-2024 02:19
Into the NightProfile picture★★★★★
(21535)
keepit wrote:
itn,
It just occurred to me that if you were a student in the kind of classes i've taken you would flunk and be asked to leave the class.

Doesn't say much for your class! I wouldn't bother taking such a class!
keepit wrote:
Is there anywhere in the world where your train of thought would be acceptable?

Sure.

Aviation (including the FAA). Home. Business. Construction trades. The chemical industries (including pyrochemical, electrochemical, mordant, sanitizing and bleaching industries). Casino dealing and management. Railroad equipment maintenance and operation. Electrical and electronics industries. Software industries. Civil engineering. Communications equipment (including radio). The FCC. The medical equipment industry. Heavy equipment industry. Pulp and paper mills, material handling and mining, the entertainment industry, government and community TV stations, farmers and ranchers, etc.

Oh...and some people right here on this forum.

Shall I go on?

BTW, you are probably benefiting from my equipment and/or software today, though you don't know it.


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
Edited on 02-02-2024 02:26
02-02-2024 02:43
IBdaMannProfile picture★★★★★
(14338)
keepit wrote: itn, It just occurred to me that if you were a student in the kind of classes i've taken you would flunk and be asked to leave the class.

keepit, now you're just talk'n trash.



keepit wrote: Is there anywhere in the world where your train of thought would be acceptable?

Only where results matter, and perhaps where people value honesty over self-delusion.

02-02-2024 03:14
keepit
★★★★★
(3038)
Did you complete any of those courses? What institutions are you talking about.
Regardless of what you say, i have a pretty good idea of what's acceptable at U.S. institutions.
02-02-2024 20:11
Into the NightProfile picture★★★★★
(21535)
keepit wrote:
Did you complete any of those courses? What institutions are you talking about.
Regardless of what you say, i have a pretty good idea of what's acceptable at U.S. institutions.

Now you claim to be able to dictate "What's acceptable" at all US institutions!

Omniscience fallacy.
You don't get to dictate anything, keepit!


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
02-02-2024 21:09
keepit
★★★★★
(3038)
Too many false claims itn.
03-02-2024 06:41
IBdaMannProfile picture★★★★★
(14338)
keepit wrote: Too many false claims itn.

You're full of baloney, keepit.

03-02-2024 08:12
Into the NightProfile picture★★★★★
(21535)
keepit wrote:
Too many false claims itn.

You are describing yourself again.


The Parrot Killer

Debunked in my sig. - tmiddles

Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit

nuclear powered ships do not require nuclear fuel. - Swan

While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan
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