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B752 - Aft Break Ring.  
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Posted (8 years 5 days 11 hours ago) and read 2142 times:

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


Think of the brighter side!
3 replies: All unread, jump to last
 
User currently offlineKevinL1011 From United States of America, joined Mar 2005, 2964 posts, RR: 48
Reply 1, posted (8 years 1 day 16 hours ago) and read 2013 times:

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.
User currently offline777WT From United States of America, joined Jan 2005, 875 posts, RR: 1
Reply 2, posted (8 years 12 hours ago) and read 1961 times:

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.


User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 3, posted (8 years 11 hours ago) and read 1955 times:

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



Think of the brighter side!
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