7AT AT ORD
- Thread starter Goey
- Start date
Kev3188
Veteran
Pack burn?
Kev3188
Veteran
Thanks. Nope, not an AMT, and never heard that term before...
kirkpatrick
Veteran
What's the significance of a Pack Burn? Is it unusual?
MK
MK
Glenn Quagmire
Veteran
- Apr 30, 2012
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Used to do them on DC-9's. Burn (put the pack control in full heat mode) to remove oil contamination or to thaw them (socks) after freezing up.
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D
DallasConehead
Guest
Well, this is a case where people that aren't affiliated with the "Tech Ops" organization haven't any idea what a "pack burn " is. Its not your fault that you don't know, why would you, you don't work on planes.
Let me just give a brief overview:
This term is associated with MD80s. Because of the location of the APU air inlet on an 80, the air conditioning system is subject to oil contamination because the APU will ingest the oil. and when this happens you get smoke in the cabin or hydraulic fluid smells. There is a work card or procedure to super heat the packs to burn all the oil residue out.
The 777 on the other hand is 20-30 years advanced from the 80, thus, it doesn't suffer the problems 80 packs suffer. It doesn't get "pack burns".
Now, I am a Conehead, and as such may not have a complete grasp on the facts regarding pack burns and fleet types that use them, but I'm pretty sure there is no such procedure on a triple.
I suspect the OPs intention was to illuminate the ignorance of the manager that wanted to do such a procedure on a triple. This stems from that fact that most experienced mechanics aren’t interested in going into management because of the way they are treated. If you’re a good one you get fired, a bad one and you advance. It has been this way for many years. As a result, a lot of management has had very little time actually working on a large transport category plane. Some have none and there is a general “dumbing down” with management.
Let me just give a brief overview:
This term is associated with MD80s. Because of the location of the APU air inlet on an 80, the air conditioning system is subject to oil contamination because the APU will ingest the oil. and when this happens you get smoke in the cabin or hydraulic fluid smells. There is a work card or procedure to super heat the packs to burn all the oil residue out.
The 777 on the other hand is 20-30 years advanced from the 80, thus, it doesn't suffer the problems 80 packs suffer. It doesn't get "pack burns".
Now, I am a Conehead, and as such may not have a complete grasp on the facts regarding pack burns and fleet types that use them, but I'm pretty sure there is no such procedure on a triple.
I suspect the OPs intention was to illuminate the ignorance of the manager that wanted to do such a procedure on a triple. This stems from that fact that most experienced mechanics aren’t interested in going into management because of the way they are treated. If you’re a good one you get fired, a bad one and you advance. It has been this way for many years. As a result, a lot of management has had very little time actually working on a large transport category plane. Some have none and there is a general “dumbing down” with management.
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Kev3188
Veteran
Thanks all for taking the time to explain the procedure.
As for that last paragraph, that's also been my experience, and I couldn't agree more../
As for that last paragraph, that's also been my experience, and I couldn't agree more../
OP
Goey
Advanced
- Aug 19, 2010
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- Thread Starter
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Dallas cone head. Thanks for picking up the slack. Pretty much explains the whole situation. And I'm pretty sure there's no procedure for burning out 5-10 gallons of skydrol put into the air side of the system on a 777. I think the manager thought he would try something new because they know more than us lowly mechanics.
Glenn Quagmire
Veteran
- Apr 30, 2012
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Now I understand the gist of the OP. Amazing.
Gman10
Member
- May 24, 2011
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Not sure what the issue was with 7AT but the AMM has a procedure for removing oil contamination from air conditioning and pneumatic systems, it also mentions "pack burn". Engine and APU procedures.
Task 21-00-01-100-801 777 AMM
Oil Contamination Removal from Air Conditioning and Pneumatic Systems
Task 21-00-01-100-801 777 AMM
Oil Contamination Removal from Air Conditioning and Pneumatic Systems
What will it take for all AMT'S to perform maintenance I.A.W. the appropriate manuals and procedures? I understand sometimes your caught up in the moment and a supervisor or other members of management will give a directive contrary to procedures. Make sure a witness is with you if such a event occurs.
