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737NGX Pressurization Help
Lawrence Mancey
United Kingdom

29th Mar 2012
12:00:25
Hi guys,
Whenever I fly a long journey in the NGX i always get these warnings on the pressurization panel any ideas?



Graeme Brown
United Kingdom

29th Mar 2012
12:26:05
I notice you have the packs set to high rather than auto and the isolation valve open rather than auto. Also the APU bleed is on. If the APU is off this should also be off to avoid a dual bleed warning.
Ian Whiteside
United Kingdom

29th Mar 2012
13:38:17
If you set your overhead press. alt. to a Flight Level and don't attain that flight level before descent then you will get the 'AIR COND' warning...
Ian Whiteside
United Kingdom

29th Mar 2012
13:39:13
...should have said 'altitute'
Graeme Brown
United Kingdom

29th Mar 2012
14:43:47
Ian, that's right, but that would give you an 'off schedule descent' warning rather than 'autofail'
Lawrence Mancey
United Kingdom

30th Mar 2012
08:36:03
thanks guys have tried out what you said and now my master caution light stays unlit thanks for the help
lawrence



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