Moderators: jsumali2, richierich, ua900, PanAm_DC10, hOMSaR

 
GneissGuy
Topic Author
Posts: 169
Joined: Mon Jul 24, 2006 6:42 pm

SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:19 am

How did that happen? Is it even possible? Aircraft in question is 9V-STG

Singapore Airlines plane collapses at Changi Airport
No passengers or crew were on board the SIA Airbus A330-300 when it collapsed Sunday morning, said the airline.

SINGAPORE: The nose gear of a Singapore Airlines (SIA) plane collapsed on Sunday morning (Oct 11) at Changi Airport, confirmed the airline in response to queries from Channel NewsAsia.

There were no passengers or crew on board at the time, said SIA. At the time of the collapse, which happened around 8am, one engineer was on the aircraft but was not hurt, added the airline.

"Singapore Airlines will be co-operating fully with the authorities in their investigations," it said.

Photos sent to Channel NewsAsia on Sunday showed the plane leaning forward on the tarmac of Changi Airport next to an aerobridge, and the photos appear to show that the front door of the plane was torn off.


View Large View Medium
Click here for bigger photo!

Photo © Roy R.X.

http://www.channelnewsasia.com/news/...rlines-plane/2184022.html?cid=FBSG

[Edited 2015-10-10 20:25:50]

[Edited 2015-10-11 12:57:06 by moderators]
 
User avatar
Aesma
Posts: 13024
Joined: Sat Nov 14, 2009 6:14 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:21 am

Ouch !

I'd say someone screwed up big time.
New Technology is the name we give to stuff that doesn't work yet. Douglas Adams
 
Prost
Posts: 2571
Joined: Wed Oct 03, 2012 6:23 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:23 am

Door torn off doesn't sound like a cheap repair.
 
OMP777X
Posts: 455
Joined: Fri Jan 23, 2015 8:10 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:25 am

Quoting Aesma (Reply 1):
I'd say someone screwed up big time.

Either that, or it's ghosts!
        
I'm guessing it will end up being an accident on the part of a mechanic.

Best,

OMP777X
"Happy Flighting!"
 
SInGAPORE_AIR
Posts: 11621
Joined: Mon Nov 13, 2000 4:06 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:29 am

It looks like the nosewhee has sunk into the ground ?

https://twitter.com/teeratr/status/653045934339813377
Anyone can fly, only the best Soar.
 
32andBelow
Posts: 4797
Joined: Mon Sep 03, 2012 2:54 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:32 am

Quoting GneissGuy (Thread starter):
How did that happen? Is it even possible?

Well...you posted a photo of it!
 
mig21umd
Posts: 316
Joined: Wed Feb 16, 2005 6:30 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:36 am

I remember a similar incident with an Ansett 767 at Sydney airport. (or it could just be my imagination).

The gear leaver was basically cycled by an engineer while on the ground without the landing gear safety pins being in place. Something similar could have happened here, I'm sure an engineer can give an opinion on this.
Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you long to return
 
User avatar
hongkongflyer
Posts: 798
Joined: Tue Oct 28, 2014 8:23 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:42 am

Quoting SInGAPORE_AIR (Reply 4):

https://twitter.com/teeratr/status/653045934339813377
Quoting SInGAPORE_AIR (Reply 4):
It looks like the nosewhee has sunk into the ground ?

https://twitter.com/teeratr/status/653045934339813377

It's looks like the nose gear was inserted into the fuselage, rather then being retracted accidentally.

Serious damage to the nose section and it seems that the engine(s?) (at lease the one on the left hand side) has touched the ground.

It will be an expensive repair.
 
CHCalfonzo
Posts: 120
Joined: Fri Mar 16, 2007 8:56 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 4:07 am

Looks like they were working on the gear at the time, the gear doors are open.
 
User avatar
Spacepope
Posts: 4643
Joined: Tue Dec 28, 1999 11:10 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 5:00 am

Quoting CHCalfonzo (Reply 8):

Wouldn't the gear doors open if the gear was cycled even on the ground ? No nose gear pin?
The last of the famous international playboys
 
User avatar
N14AZ
Posts: 4137
Joined: Sat Feb 24, 2007 10:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 6:11 am

@ Reply 4 and reply 7: if an airliner is standing at its position, how should the nose gear sink into the ground or insert into the cockpit section?

How old or young is 9V-STG?
 
boefan
Posts: 1022
Joined: Tue May 27, 2014 6:33 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 6:19 am

 
User avatar
ordell
Posts: 362
Joined: Sun Oct 12, 2014 1:33 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 6:20 am

Let's just be glad that nose gear didn't collapse on a landing.
 
RickNRoll
Posts: 1868
Joined: Fri Jan 06, 2012 9:30 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 7:04 am

Quoting ordell (Reply 12):
Let's just be glad that nose gear didn't collapse on a landing.

It didn't collapse, it retracted, according to SIA.
 
B8887
Posts: 457
Joined: Sun Sep 30, 2012 9:47 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 7:05 am

Some nasty damage made to the nose section by those metal stairs, or whatever that is. (2nd photo in the article).

Regards.

B8887
 
User avatar
N14AZ
Posts: 4137
Joined: Sat Feb 24, 2007 10:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 7:24 am

@ B8887: it was kind of a ladder / small maintenance platform and it seems as if they were working in this area. Thank God nobody was on the ladder when it happened
 
PanAm747LHR
Posts: 179
Joined: Sat Sep 03, 2005 12:58 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 7:42 am

I saw this when I landed at Changi this morning on MH 643. Was going to write a post and ask if anyone knew what happened but it's clearly already up and running...

I'd post my pics but the ones in the article are much better. Glad everyone is ok!
 
User avatar
N14AZ
Posts: 4137
Joined: Sat Feb 24, 2007 10:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 8:00 am

Thanks for supporting MH in these troubled times  
 
9vswa
Posts: 64
Joined: Sun Dec 03, 2006 5:43 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 9:17 am

Quoting mig21umd (Reply 6):
The gear leaver was basically cycled by an engineer while on the ground without the landing gear safety pins being in place. Something similar could have happened here, I'm sure an engineer can give an opinion on this.

I'm not an engineer, but I've heard from a source that this is pretty much what occurred here. Allegedly the engineer was conducting a retraction test and the locking pin wasn't in place.
 
User avatar
FredrikHAD
Posts: 451
Joined: Thu Aug 06, 2015 9:44 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 9:27 am

Well, the door is ripped off, the nose gear busted and we also have a possible engine damage (perhaps superficial). Add to that possible nose avionics/radar damage and we have the a.net W/O discussion going  

If they were working on the nose gear and there was a problem extending/retracting it in the previous flight, shouldn't the plane be jacked up so the techs could verify the gear function? I'd guess the jack gave away during the procedure, possibly while the gear was being retracted or when replacing some faulty part. Why would you have a locking pin if you wanted to retract?

/Fredrik

[Edited 2015-10-11 02:55:22]
 
Ronaldo747
Posts: 389
Joined: Sat Feb 14, 2009 4:58 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 10:03 am

A couple of years ago the nose gear of fully loaded LH 747-400 D-ABTK collapsed just before pushback at FRA. The plane was repaired and returned into service, it is still active.
 
trent1000
Posts: 672
Joined: Tue Jan 30, 2007 3:55 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 10:08 am

Australian news site beginning with a large picture of... an A380...
despite smaller, non-descript pics of the A330 below. Gotta love the media. (not)

http://www.news.com.au/travel/travel...hecks/story-fnizu68q-1227565245640
 
User avatar
garpd
Posts: 2530
Joined: Thu Aug 11, 2005 9:29 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 10:21 am

Quoting SInGAPORE_AIR (Reply 4):
It looks like the nosewhee has sunk into the ground ?

https://twitter.com/teeratr/status/653045934339813377

Good observation. This does not look like the typical gear retraction accident as you'd expect to see the nose gear lying on the ground. Either it is fully retracted or it has either disappeared into the ramp or, more seriously, punched through into the electronics bay and perhaps into the cabin. How THAT would happen, I have no idea!
arpdesign.wordpress.com
 
grimey
Posts: 309
Joined: Tue Jun 07, 2005 2:48 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 11:19 am

Not a good thing to happen at all and it will cost a good bit of money to repair.

I am surprised that no one has posted this video

https://www.youtube.com/watch?v=Qhovv6MPlbA

Sorry I just had to  
 
User avatar
lammified
Posts: 46
Joined: Fri Nov 25, 2005 11:28 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 11:40 am

The aircraft has been lifted off the ground and is resting on all 3 sets of gear. The damage to the nose looks minor, although I'm sure it will undergo a full structural inspection. The engines are apparently undamaged but will undergo inspection as well. It appears the nose gear doors and the step ladder bore the brunt of the impact and cushioned the aircraft nose from hitting the tarmac.
 
User avatar
N14AZ
Posts: 4137
Joined: Sat Feb 24, 2007 10:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 12:38 pm

Thanks, Lammified, for the update. If it is now resting on all three sets of its gear, this pretty much excludes the possibility of the nose gear inserting the cockpit section.
 
andrej
Posts: 1255
Joined: Mon Jun 18, 2001 8:31 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 2:30 pm

Such incidents happen once in a while. The airplane is usually repaired and continues to fly for several years.

My initial thought, that maintenance forgot to install the gear pin and conducted some gear retraction tests. But this is pure speculation on my side.


View Large View Medium
Click here for bigger photo!

Photo © Elizabeth
View Large View Medium
Click here for bigger photo!

Photo © Elizabeth


View Large View Medium
Click here for bigger photo!

Photo © Jeffwell
View Large View Medium
Click here for bigger photo!

Photo © Helmut Schnichels



Cheers,

Andrej
 
B737900
Posts: 226
Joined: Fri Aug 20, 2010 10:44 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 2:43 pm

Quoting trent1000 (Reply 21):
Australian news site beginning with a large picture of... an A380...
despite smaller, non-descript pics of the A330 below. Gotta love the media. (not)

I read the article you posted and I saw no photo of an A380.
Sounds like a Beaver on floats..........we're saved!!
 
User avatar
JetBuddy
Posts: 2563
Joined: Wed Dec 25, 2013 1:04 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 2:48 pm

From the article:

"In response to queries, SIA said the nose gear of the aircraft retracted while the aircraft was at Gate A17 undergoing a landing gear system check at around 8am on Sunday morning."

So they were running a system check of the landing gear. And the nose gear retracted, while being on the ground. I thought this wasn't technically possible while there's force acting upon the gear? I thought they would have to hang "free" to cycle. But since others are saying this has happened to Boeings in the past, I guess it's not the first time.

Any Airbus engineers who knows how this system works that can shed some light upon this?
 
qf002
Posts: 3664
Joined: Tue Jul 05, 2011 11:14 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 2:54 pm

Quoting B737900 (Reply 27):
I read the article you posted and I saw no photo of an A380.

It did earlier, though they've obviously changed it now that a decent photo of the A330 in question is available.
 
B737900
Posts: 226
Joined: Fri Aug 20, 2010 10:44 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 2:58 pm

Quoting qf002 (Reply 29):
It did earlier, though they've obviously changed it now that a decent photo of the A330 in question is available.

  
Sounds like a Beaver on floats..........we're saved!!
 
SASDC8
Posts: 530
Joined: Thu Mar 09, 2006 10:01 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:32 pm

Quoting JetBuddy (Reply 28):
I thought this wasn't technically possible while there's force acting upon the gear? I thought they would have to hang "free" to cycle.

As long as the safety pin that prevents the gear from retracting is removed, the gear will retract on the ground as well. From the looks of it someone forgot to put safety pin into its correct position, thus not locking the gear from retracting.
2-3-2 is NOT a premium configuration
 
jeb94
Posts: 587
Joined: Mon Oct 04, 2004 9:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 3:45 pm

Quoting JetBuddy (Reply 28):
So they were running a system check of the landing gear. And the nose gear retracted, while being on the ground. I thought this wasn't technically possible while there's force acting upon the gear? I thought they would have to hang "free" to cycle. But since others are saying this has happened to Boeings in the past, I guess it's not the first time.

Its very much possible. The wheels will roll and allow the gear to rotate up and into the well if the gear retracts in a forward or rearward movement. The main landing gear on most large aircraft retract sideways into the wheel wells so usually don't move, though they are trying. On many smaller aircraft in which the mains rotate forward or rearward to retract, they'll go too and you'll wind up with a plane sitting on its belly. There have been mechanics crushed inside nose landing gear so thank god no one got hurt with this one.
 
User avatar
JetBuddy
Posts: 2563
Joined: Wed Dec 25, 2013 1:04 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 4:24 pm

Quoting SASDC8 (Reply 31):
As long as the safety pin that prevents the gear from retracting is removed, the gear will retract on the ground as well. From the looks of it someone forgot to put safety pin into its correct position, thus not locking the gear from retracting.
Quoting jeb94 (Reply 32):
Its very much possible. The wheels will roll and allow the gear to rotate up and into the well if the gear retracts in a forward or rearward movement. The main landing gear on most large aircraft retract sideways into the wheel wells so usually don't move, though they are trying. On many smaller aircraft in which the mains rotate forward or rearward to retract, they'll go too and you'll wind up with a plane sitting on its belly. There have been mechanics crushed inside nose landing gear so thank god no one got hurt with this one.

Thanks guys, learned something new. Seems like someone didn't put the safety pin in then. Very expensive mistake. Good thing nobody was hurt.
 
JOYA380B747
Posts: 794
Joined: Sun Mar 27, 2005 11:31 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 4:45 pm

Just a weird thought, and I sincerely hope that such a thing doesn't happen, how bad could such a nose gear collapse be had the boarding process been ongoing. Imagine a passenger, about to step one foot inside when the plane collapses, he could end up being caught between the aerobridge and the plane door and, God forbid, have a fatal incident in seconds.

Airlines need to take nose gear collapses very very seriously.
India's biggest loss w.r.t global aviation (so far) - Being an Australasia-Europe stopover.
 
kraz911
Posts: 189
Joined: Sat May 03, 2014 5:21 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 7:51 pm

Hello all,

I'm glad no one was injured. But the damage to the nose gear area is much worse due to the ladder/stand getting in the way. I'm wondering how much damage is at the cabin door with it being forced upward as it got caught on the jetway? Hopefully the door frame/structure wasn't tweaked.

I would definitely agree with other posters that this will not be a cheap fix...
 
User avatar
readytotaxi
Posts: 7325
Joined: Mon Dec 11, 2006 2:09 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 8:14 pm

With this incident will it require an inflight test of door and nose wheel area before returning to service or can this be established on the ground?
you don't get a second chance to make a first impression!
Growing older, but not up.
 
SXDFC
Posts: 2028
Joined: Sun Dec 09, 2007 6:07 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 8:17 pm

Quoting ordell (Reply 12):
Let's just be glad that nose gear didn't collapse on a landing.

Lets also be glad it didn't collapse with ground crew underneath it. Getting smashed by an A330 might give you a bit of a headache..
 
User avatar
Thunderboltdrgn
Posts: 2039
Joined: Wed Jan 18, 2012 5:39 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 8:33 pm

Quoting readytotaxi (Reply 36):
With this incident will it require an inflight test of door and
nose wheel area before returning to service or can this be established on the ground?


It can be tested on the ground:

Video of landing gear tests: http://www.youtube.com/watch?v=ChPLaXqO0eQ
http://www.youtube.com/watch?v=g9-F8a8E3oM

[Edited 2015-10-11 13:37:21]
Like a thunderbolt of lightning the Dragon roars across the sky. Il Drago Ruggente
 
Viscount724
Posts: 19316
Joined: Thu Oct 12, 2006 7:32 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Sun Oct 11, 2015 8:50 pm

Quoting GneissGuy (Thread starter):
Is it even possible?

It's not unheard of.


View Large View Medium
Click here for bigger photo!

Photo © Jeffwell
View Large View Medium
Click here for bigger photo!

Photo © Frank skinner


View Large View Medium
Click here for bigger photo!

Photo © Frans Zwart
View Large View Medium
Click here for bigger photo!

Photo © Kev hotchkiss


View Large View Medium
Click here for bigger photo!

Photo © Andy Muir

 
7673mech
Posts: 539
Joined: Tue Mar 30, 2004 10:10 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 3:10 am

Quoting FredrikHAD (Reply 19):
f they were working on the nose gear

There is a routine check done to ensure proper functioning.
Step one is to install down lock pins.
 
Fixinthe757
Posts: 231
Joined: Thu Oct 17, 2013 10:48 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 3:13 am

Quoting JOYA380B747 (Reply 34):
Airlines need to take nose gear collapses very very seriously.

You seriously think they don't??!!!
People, gear don't retract by themselves, the gear handle has to be physically moved to the up position for this to happen. It doesn't do it automatically nor randomly. The mechanic moved the handle to the up position, the gear pin wasn't in, yes the nose gear will retract. As stated and shown above, it has happened many times.
 
User avatar
northwestEWR
Posts: 1974
Joined: Sat Oct 09, 2004 12:45 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 4:54 am

Quoting 7673mech (Reply 40):

Quoting FredrikHAD (Reply 19):
f they were working on the nose gear

There is a routine check done to ensure proper functioning.
Step one is to install down lock pins.

What are they testing if the gear is locked in the down position and can't retract/cycle? Electronics?

Whenever I've had to do gear tests, it always involved jack stands, not gear pins. Granted that was G/A jets, not airlines.
Northwest Airlines - Now You're Flying Smart
 
Lofty
Posts: 688
Joined: Sun Mar 16, 2008 5:23 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 9:17 am

Not a good time for SQ last night one of their B777 landed at LHR with a forward landing gear steering issue. On further inspection by the Fire Service on the ground they also found a leak on the main gear which was smoking.
 
User avatar
Horstroad
Posts: 514
Joined: Thu Apr 08, 2010 8:19 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 2:04 pm

Quoting Fixinthe757 (Reply 41):
The mechanic moved the handle to the up position, the gear pin wasn't in, yes the nose gear will retract

From the certainty you are saying this with, I can only assume you were right there when it happened. Sure, it looks like you are right right and I too think this is what happened. But unless you have a different source than I have you shouldn't state as fact what is only a theory. Maybe there was a bug in the electronics that made the gear retract. Though unlikely it should not be ruled out until it is disproved.
 
Tristarsteve
Posts: 3663
Joined: Tue Nov 22, 2005 11:04 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 5:56 pm

Quoting horstroad (Reply 44):
Maybe there was a bug in the electronics that made the gear retract. Though unlikely it should not be ruled out until it is disproved.

This happened on a Tristar around 1980. The aircraft had just arrived at the gate, ground power on, and the engine was shut down. As the engine wound down, ground power dropped out and the residual hyd pressure from the engine retracted the nose gear. After this, for the next two years, we met every Tristar and inserted the NLG downlock pin before engine shutdown.

There is a reason to move the landing gear selector on some Boeings. You have to move it out of the way to replace a VDU in the pedestal. Of course pin in, and hydraulics off, but a dumb design.
One of the B744 above was caused by the mechanic checking the pins, and then going up to the flightdeck. Then the ground ops team removed the pins as they had finished towing.

Personally, I have moved the selector lever to up with the hydraulics off, but have put a nose jack in position when I have to move it with the hydraulics on. Been lucky so far, and I retire next year!
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 8:18 pm

Shouldn't the squat switch have prevented gear movement with weight on the nosewheel? In most GA planes, there are squat switches to prevent this kind of thing...  
Celebrating the birth of KELPkidJR on August 5, 2009 :-)
 
Tristarsteve
Posts: 3663
Joined: Tue Nov 22, 2005 11:04 pm

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 9:40 pm

Quoting KELPkid (Reply 46):
Shouldn't the squat switch have prevented gear movement with weight on the nosewheel? In most GA planes, there are squat switches to prevent this kind of thing...

The ground sense switch would stop the selector handle from moving, but there is an override button beside the handle in case the switch fails. When carrying out ground tests you always have to press the override button.
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Mon Oct 12, 2015 10:45 pm

Quoting Tristarsteve (Reply 47):

The ground sense switch would stop the selector handle from moving, but there is an override button beside the handle in case the switch fails. When carrying out ground tests you always have to press the override button.

Interesting. In most GA planes that I've flown with retractable gear, you can move the gear handle all you want with the plane on the ground. Unless you unload the squat switches, the hydraulics in the system will be inhibited from moving anything.

Every flight instructor I had also pointed out that squat switches also tend to have high failure rates, and it is best not to tempt fate by moving the gear handle on the ground (unless you're the mechanic, and the aircraft has been jacked up   ).
Celebrating the birth of KELPkidJR on August 5, 2009 :-)
 
AIRWALK
Posts: 240
Joined: Fri Jun 06, 2014 9:33 am

RE: SQ A330-300 Nose Gear Collapses At Changi

Tue Oct 13, 2015 10:06 pm

It appears that the aircraft landed in Singapore with a LGCIU fault. It was to be replaced during turnaround, and as others have said the pins were not inserted which caused the retraction when the gear selector was moved up.
I'm sure this thread will take off soon

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos