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HAWK21M
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Joined: Fri Jan 05, 2001 10:05 pm

B752 - Aft Break Ring.

Fri Aug 18, 2006 8:28 pm

Is there any unit on the Structure aft of the Rear pressure Bulkhead of a B752 called the Aft Break Ring.If So any idea what its purpose is.Around STA 1862 approx.
Noticed this on a magazine some time ago.Could not find this in the AMM.

regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
KevinL1011
Posts: 2858
Joined: Fri Mar 04, 2005 3:48 pm

RE: B752 - Aft Break Ring.

Tue Aug 22, 2006 4:07 pm

Sounds like some kind of cabin over/under pressure safety device. Perhaps a "pop off" valve.
 scratchchin 

Hopefully someone will post the answer.
474218, Carl, You will be missed.
 
777wt
Posts: 828
Joined: Wed Jan 19, 2005 7:45 am

RE: B752 - Aft Break Ring.

Wed Aug 23, 2006 7:59 pm

Quoting KevinL1011 (Reply 1):
Sounds like some kind of cabin over/under pressure safety device. Perhaps a "pop off" valve.

There's postive and negative relief valves for that.
 
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HAWK21M
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Joined: Fri Jan 05, 2001 10:05 pm

RE: B752 - Aft Break Ring.

Wed Aug 23, 2006 8:34 pm

Quoting 777WT (Reply 2):
There's postive and negative relief valves for that.

These are not relief valves.The b752 has Two Negative relief valves on the RH side of the MEC area & Two Positive Pressure Valves on the LH Aft side near the Rear pressure bulkhead.
This is some structural part by the tone of the name I guess.
regds
MEL
I may not win often, but I damn well never lose!!! ;)

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