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Thread: 747-400 Insulation Valves
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Old 15th Oct 2008, 08:51
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NOLAND3
 
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BelArgUSA - Wow Give the 16 year old kid a break..

And as the above poster stated if your operating outa somewhere like Quito, Bogota or very hot conditions you can perform a Pack to APU departure to give you a little extra margin, Packs 1 + 3 off and Isolation valves closed.
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