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3rd Oct 2008, 13:05

#10 (permalink)

OPEN DES

Join Date: Apr 2004

Location: United States of Europe

Age: 40

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Your captain is wrong and you are right. TCAS looks at pressure altitude (i.e. 1013.25/2992) independent of QNH selections.

Also there is no need to change the AP in command when pre-selecting QNH!

Hope this helps

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