Parking with flaps extended
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Joined: Dec 2006
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Parking with flaps extended
Hello folks, a little question out of curiosity.
On Saturday I happened to notice several Citations parked on the Business Aviation apron at EDI, and one thing I spotted was that they were all parked with flaps extended. Also, I happened to be browsing through some Piper Tomahawk pictures on an aviation site when I noticed that several were parked again with their flaps extended.
This intrigued me, since at my club we always park with flaps up, and this also seems to be the norm on all Boeings and Scarebuses too.
Any particular reason why some aircraft are parked with flap down?
On Saturday I happened to notice several Citations parked on the Business Aviation apron at EDI, and one thing I spotted was that they were all parked with flaps extended. Also, I happened to be browsing through some Piper Tomahawk pictures on an aviation site when I noticed that several were parked again with their flaps extended.
This intrigued me, since at my club we always park with flaps up, and this also seems to be the norm on all Boeings and Scarebuses too.
Any particular reason why some aircraft are parked with flap down?
Joined: Jul 2005
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From: Ask OPS!
On the scarebus it is normal to leave the slats extended when the temperature reaches in excess of 30 degrees (no hope of that in EDI this year 
).
The reason being that the sensors that detect a wing bleed leak can get confused by the temp if the slats are shut and don't get any cooling air flow. Therefore it avoids nuisance ecam warnings in the cockpit.
).The reason being that the sensors that detect a wing bleed leak can get confused by the temp if the slats are shut and don't get any cooling air flow. Therefore it avoids nuisance ecam warnings in the cockpit.
Aviator Extraordinaire
Joined: May 2000
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From: Oklahoma City, Oklahoma USA
It is standard practice for certain series of Citations to be parked with partial flaps to prevent strain on the flaps systems. It has been a long time since I flew a Citation, however, I'm sure there is a Citation pilot here that can explain the reason better than I.
Joined: Mar 2007
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From: Here and there
Hetfield, we used to do the same on long runways(BAH) but use 15/15 now.In fact I cannot think of anywhere we do this,but we do put them away at night!
Many years ago we had an aircraft damaged taxi-ing in on a contaminated surface across in the US.It damaged the flap mechanism.However somewhere during the telephone call to engineering this translated into slats!!The engineers turned up with a big spanner for the slats and the rest as they say is history!!
Many years ago we had an aircraft damaged taxi-ing in on a contaminated surface across in the US.It damaged the flap mechanism.However somewhere during the telephone call to engineering this translated into slats!!The engineers turned up with a big spanner for the slats and the rest as they say is history!!
PPRuNe supporter
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From: Planet Earth
I have never had any bleed leak warnings and always select flaps 0 for parking, we did however have a fuel truck hit one of our 321's recently and damage the trailing edge, aircraft was parked in Config 1. 
Joined: Feb 2002
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From: location location
3 or 4 years ago on the minibuses it was fairly common to get spurious but locked in ecam message of wing air bleed leak at >+30 c with slats up.
However most aircraft have since had this software glitch mod'ed out so its ok to leave the slats/flaps up in high temperatures now.
However most aircraft have since had this software glitch mod'ed out so its ok to leave the slats/flaps up in high temperatures now.
Joined: Jul 2007
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From: Cincinnati, Ohio
On the CRJ 100/200 we leave the flaps at 20 after landing, unless it's the last flight of the day then we bring them up. This reduces wear/tear on the flap drive system/FECU as well as allows us to check an AD that requires us to check and examine the position of the flaps before every takeoff.
Joined: Apr 2007
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From: Europe
flaps extended
there are only 2 perfrctly good reasons for parking an aircraft with the flaps extended.
one - fatique as happend to us lately
two - hijack, for god's sake they didn't mistake us for it those days
if the maufacturer require it - somethings really wrong!!!
Three --- real major problem!!!
one - fatique as happend to us lately
two - hijack, for god's sake they didn't mistake us for it those days
if the maufacturer require it - somethings really wrong!!!
Three --- real major problem!!!