View Full Version : Do you turn FD's Off after landing?
A question for airbus pilots,
Do you turn off fd's after landing ? if yes, why ?
thanks, safe flying!!
safelife
20th Feb 2018, 16:45
No, never, ever.
No reason to do that.
Romasik
20th Feb 2018, 16:49
A question for airbus pilots,
Do you turn off fd's after landing ? if yes, why ?
thanks, safe flying!!
Yes. To save some power consumed by FD P/Bs:)
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.:)
No, never, ever.
No reason to do that.
In Boeing aircraft you do....part of the after landing check list.
Its Maui
20th Feb 2018, 17:19
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)?
EK380
20th Feb 2018, 20:21
If we’re talking A380 the automatic PRIM reset x mins after shutdown switches it off anyway.
WrldWide
20th Feb 2018, 20:49
On t7 yes, flew md11 for many many years, never. Must be a boeing thing.
Fat Busdriver
20th Feb 2018, 21:30
Yes! The reason? Monkey see monkey doo! ;-)
Flybartfcp
20th Feb 2018, 21:57
We used to until some years ago, now we don’t at our airbus fleet
Yes! The reason? Monkey see monkey doo! ;-)
You tell me buddy....
https://flyuk.aero/assets/downloads/resources/checklists/UKV-PRD-B737-CHECKLIST-V2.pdf
http://www.kennair.com.au/wp-content/uploads/2015/04/B777-200-CHECKLIST.pdf
maggot
21st Feb 2018, 03:26
You tell me buddy....
https://flyuk.aero/assets/downloads/resources/checklists/UKV-PRD-B737-CHECKLIST-V2.pdf
http://www.kennair.com.au/wp-content/uploads/2015/04/B777-200-CHECKLIST.pdf
That's great for Boeing's but,
A question for airbus pilots,
If we’re talking A380 the automatic PRIM reset x mins after shutdown switches it off anyway.
What about the A320 series?
PPRuNeUser0182
21st Feb 2018, 08:22
Perhaps you want to look into that checklist. Turning the F/D's off (Boeing 777/787, 744) prior to selecting the fuel cutoff switches to off cancels the next sector's F/D initialization self-test.
I rarely log in and say anything; but this sort of info is brilliant! Never knew that.
(what else don't I know...)
viking767
21st Feb 2018, 17:16
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?
BraceBrace
21st Feb 2018, 17:28
If the engines are shut down before the flaps are retracted these tests will not be done.
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)
dubaigong
22nd Feb 2018, 00:13
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...
Odins Raven
22nd Feb 2018, 07:48
So what happens if you do a visual approach with FD off? No self test after landing?
Most operators recommmend the FDs are recycled I.e. OFF then re-armed, on a visual manoeuvre. So the FDs would still be turned to OFF after landing in this case.
golfyankeesierra
22nd Feb 2018, 08:39
Bonway, I call BS on that, switching off F/D only removes bars from display. Self tests are run by FCC's.
Fuzuma
22nd Feb 2018, 08:39
The info is from the various FCOMs, AFMs, and AMMs.
Anybody have any info on where I would be able to download the AMM for the 777 please, I am having no luck searching the web.....
Many thanks
So what about an Airbus A320?
gearlever
22nd Feb 2018, 21:20
Do you turn your FD's ON before takeoff?
Do you turn your FD's ON before takeoff?
No we don't. It's already on at cockpit prep.
Semaphore Sam
24th Feb 2018, 02:53
What are FDs...Flight Directors? Ignorant Sam
pineteam
29th Jun 2018, 15:48
A question for airbus pilots,
Do you turn off fd's after landing ? if yes, why ?
thanks, safe flying!!
Some old Airbuses A320 in our fleet were sometimes suffering from ''FMGC TIME OUT'' shortly after landing and the MCDU will freeze if FDs were still ON. Those birds are scrapped now.
But still the habit of resetting the FDs and EFIS is still very common here even tho it's non standard. By our manual it should only be after parking checklist.
dream747
1st Jul 2018, 13:12
So what about an Airbus A320?
Not at our airline. We're not supposed to anyway, it's not part of the flow.
fab777
3rd Jul 2018, 07:18
I usually switch them off before landing...