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gekko
17th Oct 2007, 16:14
hey all!
I was wondering if there exists a procedure for flap/slat retraction after engine shutdown.
If OAT is greater than 30°Celsius we keep 1+F, but sometimes we have to retract them again for fuelling. I know this is done by putting the Y elec pump on...but is there also an FCOM procedure (I can't find one).
And another question, can this kind of procedure cause a Flaps/Slats SYS fault?
Many thanks in advance!
Grtz

IFixPlanes
17th Oct 2007, 16:24
...And another question, can this kind of procedure cause a Flaps/Slats SYS fault?...
Yes, if you donīt use in addition the blue hydraulic pump.
Only using yellow and green (via PTU) causes system fault.

gekko
17th Oct 2007, 16:33
Thanks! And could you tell me why this is? They're - I thought- perfectly retractable via Yelec and Green (via PTU)...

And the slats failure, is it then resettable by recycling the flaps/slats?

Many thanks!

IFixPlanes
17th Oct 2007, 16:43
And could you tell me why this is? They're - I thought- perfectly retractable via Yelec and Green (via PTU)...Flaps moves nearly perfectly, but the Slats move only with half speed (or even slower due to PTU driven green system)


...And the slats failure, is it then resettable by recycling the flaps/slats?The failure normally disappear after slats reaches commanded position.

Ingo

gekko
17th Oct 2007, 17:28
ok! thanks!

any fcom reference for the procedure...I think I've read it somewhere, but can't find it back...

ratarsedagain
17th Oct 2007, 17:48
there should be a reference in the fcom in the cold weather section where it has the procedure for retracting the flaps if they've been left down for inspection after landing on a contaminated runway.

found the ref.........fcom 3.04.91

gekko
17th Oct 2007, 18:47
hey thanks a lot!

I've also found some more info fcom 2.04.10 special ops, fluid contaminated rwy!

thx!!!

FlightDetent
18th Oct 2007, 08:52
FCOM asks for Slat 1 for pack cooling. Invariably, you will end up with 1+F when on ground which scares the refuellers now and then. I believe the difference lies only with the FCOM choice of words, and is not really important.

But, is there a way to get 1+0 on the ground?

FD
(the un-real)

IFixPlanes
18th Oct 2007, 09:31
...
But, is there a way to get 1+0 on the ground?There is no 1+0.
I think you mean config 1 (1+0=0);)
If you use only blue hydraulic and set flap lever to 1 you get slats 18° and flaps remain at 0°.

Ingo

FlightDetent
18th Oct 2007, 10:26
Ommitted the quotes on "1+0" :ok: but still 1+0=1 :oh: .... couldn't resist, sorry:E
Didn't think of it as normally I do not select B to OVRD and bear with the Slat Fault indication - which contravenes the FCOM 2 procedure as I learned today. Thanks anyway!!!

Nice rule of thumb I forgot to use before asking is to write the system colours alphabetically and then imagine a wing devices profile: BBG-GYY
front -> slats -> B&G, aft -> flaps > G&Y.
No G or Y, no flaps. Need to think harder next time.:suspect:

IFixPlanes
18th Oct 2007, 11:09
... but still 1+0=1 ....Damn, thats what i meant :uhoh: :mad:
...which contravenes the FCOM 2 procedure...
I am glad that the FCOM is not relevant for me. For a grease monkey the AMM is a much better and more detailed friend.

Ingo

sapperkenno
21st Aug 2008, 00:20
Hi all,
I was going to ask this question as a new post, but this thread seems as good a place as any for it.
On arrival in Phoenix a couple of days ago after landing, as pax, I wondered why the flaps weren't returned to up after landing. I pick up on these kind of things being a bit of a geek. I duly made a point of looking at the other parked "Airbii" and noticed the same config on all.
At least you've cleared it up that it's an Airbus procedure to set Flaps 1 when hotter than 30deg outside, but what's the reason for this?? I have a few ideas but won't bore anyone... It's been bugging me now for the last few days!
Thanks,
Spr K (retd.)

IFixPlanes
21st Aug 2008, 06:50
...but what's the reason for this??...

Bleed ducts in the leading edge of the wing can heat up the surrounding internal area until you get a "AIR L ( R ) WING LEAK" warning when OAT > 30° C.
Extending the LE improve the circulation of the air around this area and reduce the erroneously warnings.

sapperkenno
23rd Aug 2008, 01:08
Extending the LE improve the circulation of the air around this area
Thanks, that clears things up.
Regards