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

MEL Query - B757.

Thu Jan 10, 2013 6:50 am

The B757 MEL permits defferment of "both" packs having High flow mode INOP,however the condition of having the Lower cargo compartments [Fwd & Aft bulk] free of cargo,except Ballast.....It does not say Live cargo but just cargo.
Anyone aware of the reason.
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fr8mech
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Joined: Mon Sep 26, 2005 9:00 am

RE: MEL Query - B757.

Thu Jan 10, 2013 8:30 am

Our MEL doesn't have that prohibition.
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tb727
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RE: MEL Query - B757.

Thu Jan 10, 2013 3:52 pm

Is there a fire suppression system installed in your 757 belly?
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tdscanuck
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RE: MEL Query - B757.

Sat Jan 12, 2013 5:40 am

Quoting HAWK21M (Thread starter):
The B757 MEL permits defferment of "both" packs having High flow mode INOP,however the condition of having the Lower cargo compartments [Fwd & Aft bulk] free of cargo,except Ballast.....It does not say Live cargo but just cargo.
Anyone aware of the reason.

In the event of a cargo fire, you probably don't have enough pack flow to prevent smoke from the cargo bay getting into the passenger compartment without at least one pack on High.

Tom.
 
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HAWK21M
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RE: MEL Query - B757.

Sat Jan 12, 2013 6:32 pm

Quoting tb727 (Reply 2):
Is there a fire suppression system installed in your 757 belly?

Afirm.

Quoting tdscanuck (Reply 3):
In the event of a cargo fire, you probably don't have enough pack flow to prevent smoke from the cargo bay getting into the passenger compartment without at least one pack on High.

Wouldn't the Bulk cargo compartment be a sealed area except for blowout panels & equalization valves.
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