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Old 22nd Apr 2018, 17:45
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KingAir1978
 
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Originally Posted by swissmen
Yes, it will. (My reply was to nj314 statement in his second post about the eng shutdown, has nothing to do with the emergency descent yet). And it is like this BECAUSE you disconnect the A/THR.





That's correct. So the first column your FMA will show is MAN MCT (in white). With A/THR active (not the case in this scenario), it would be THR MCT (in green).



This however is clearly wrong. It is THR MCT or MAN MCT. It can never be blank with at least one thrust lever in MCT.

FCOM DSC-22-30-100



Correct.

If you keep the A/THR off for the descent, YOU have to put the thrust lever to IDLE yourself and your FMA will be BLANK | OP DES | NAV or HDG

That's the reason why the EMER DESCENT says:

- if A/THR not active: THR LEVER.............IDLE
Dear Swissmen,

Assuming that I am clearly wrong, can you please explain the following two questions, please?

So to be clear, we'll completely ignore the decompression. We have a simple engine failure in cruise.
1) How would you go about it?
2) If you decide to follow the FCTM guidance, WHY would you switch the autothrust off?
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