Do you turn FD's Off after landing?
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Seriously, there is no valid reason. Just to reset the thing and let the next crew to start from square one.
What really perplexes me, is when the previous crew sets all volume controls to minimum, and I have to rotate 16 knobs to the MID position. This is one of the most time consuming parts of cockpit prep.
Last edited by Romasik; 20th Feb 2018 at 18:15. Reason: correction
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I've worked for two major european Airbus users and one doesn't and one does....
Why do Boeing do it? Is it to allow the Master/Slave logic to be reset for the next sector (737NG)?
Why do Boeing do it? Is it to allow the Master/Slave logic to be reset for the next sector (737NG)?
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I rarely log in and say anything; but this sort of info is brilliant! Never knew that.
(what else don't I know...)
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To elaborate (Boeing): After landing two sets of self-tests are run. The first set occurs once the flaps and speed brakes are retracted and the groundspeed is below 30kts. This set of tests requires 90 seconds to complete and that the hydraulics not be interrupted. If the engines are shut down before the flaps are retracted these tests will not be done. The second set of tests occur once the first set is complete and the hydraulics are depressurized (after shut down). These tests take approx. 70 seconds to complete. The F/D self-test takes place in the first set of tests and therefore is not done if the F/D's are switched off after landing.
So what happens if you do a visual approach with FD off? No self test after landing?
In more detail, what happens in situations with contaminated runway/taxiwa/apron where Boeing recommends not to retract the flaps after landing to allow for maintenance to check if no contaminants are present? (flap retraction might cause flap damage)
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Whatever is the reason , if is was so important to keep the F/D on after landing it should have been clearly written.
I am flying Boeing for more than 25 years now and never had any problem with my F/D even when switching it off after landing or doing a raw data approach without it...
I must have been very Lucky then and by the way never seen anything about this in any of the Boeing manuals available to the pilots at least...
I am flying Boeing for more than 25 years now and never had any problem with my F/D even when switching it off after landing or doing a raw data approach without it...
I must have been very Lucky then and by the way never seen anything about this in any of the Boeing manuals available to the pilots at least...
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Originally Posted by Bonway
The info is from the various FCOMs, AFMs, and AMMs.
Many thanks