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-   -   SQ A330/300 nosewheel collapse (https://www.pprune.org/rumours-news/569013-sq-a330-300-nosewheel-collapse.html)

BladePilot 11th Oct 2015 03:27

SQ A330/300 nosewheel collapse
 
Happened this morning at Changi Airport


Singapore Airlines plane collapses at Changi Airport - Channel NewsAsia

Huck 11th Oct 2015 04:46

Much loss of face....

AnQrKa 11th Oct 2015 05:06

Hopefuly there will be a Malysian around they can blame!

TWT 11th Oct 2015 05:15

I wonder what tasks the engineer was undertaking while he was onboard.

ACMS 11th Oct 2015 06:03

Damn those Pins that fall out......:eek:

UnderneathTheRadar 11th Oct 2015 06:15

I was supposed to be on that plane - SQ890 to HK. After a gate change and late departure the captain apologised for late departure due to "engineering difficulties":O

wanabee777 11th Oct 2015 07:43

Injuries
 
I'm glad no one was killed or injured. (Other than pride)

Duck Pilot 11th Oct 2015 08:24

Few bucks worth of damage there, cabin door looks like it's been torn out as well.

ChrisJ800 11th Oct 2015 08:57

Is it resting on the nacelles or are they still clear of the ground?

Duck Pilot 11th Oct 2015 09:09

Looks like it is on the nacelles Chris

roundsounds 11th Oct 2015 10:18

I would have thought the Airbus System Logic would prevent gear retraction on the ground? I'm not suggesting the gear lever was selected up, but thought there'd be a general logic to prevent gear retract on the ground?

cattletruck 11th Oct 2015 10:37

Can't see a ground engineer between the ladder and the plane...must have been in stores looking for that matching replacement part.

deptrai 11th Oct 2015 10:56

I would have thought the Airbus System Logic would prevent gear retraction on the ground? I'm not suggesting the gear lever was selected up, but thought there'd be a general logic to prevent gear retract on the ground?

most a/c have a squat switch that will prevent gear retraction on the ground. It can be overridden during mx ( the article stated "undergoing a landing gear system check"?). A few people have lost their job after an aircraft was found kneeling (the main gear is usually different). Can also be mechanical failure, but I haven't heard of that happening on A330 yet

UnderneathTheRadar 11th Oct 2015 11:42


Looks like it is on the nacelles Chris
The photos I took show it on the nacelles - but only just

http://www.4freeimagehost.com/resize...374986bf04.jpg
http://www.4freeimagehost.com/resize...b1fff9a5cd.jpg

sb_sfo 11th Oct 2015 13:12


Can also be mechanical failure, but I haven't heard of that happening on A330 yet
Not totally up to speed on 330 quirks, but 2 airlines I am aware of supply nose gear downlock pins attached to steering bypass pins to their 330 line mx providers.
There's probably a reason?

DaveReidUK 11th Oct 2015 15:04


Not totally up to speed on 330 quirks, but 2 airlines I am aware of supply nose gear downlock pins attached to steering bypass pins to their 330 line mx providers.
There's probably a reason?
This thread

http://www.pprune.org/tech-log/22901...-pushback.html

suggests that a few A330 operators use a belt-and-braces approach where the NLG downlock pin is used on pushback, as well as its normal use for towing and landing gear maintenance, in which case I suppose it makes sense to keep the gear pin and steering lockout pin together.

glad rag 11th Oct 2015 17:23

You mean people push back/pull forwards without a nose pin in place?/ REALLY :ooh:

barit1 11th Oct 2015 17:56

I seem to recall the Trident had an offset, sideways retracting NG. That had a structural advantage, and would be less likely to see accidental retraction IMHO.

DaveReidUK 11th Oct 2015 18:50


You mean people push back/pull forwards without a nose pin in place?
Yes and no, respectively. :ugh:

TURIN 11th Oct 2015 18:55


I would have thought the Airbus System Logic would prevent gear retraction on the ground? I'm not suggesting the gear lever was selected up, but thought there'd be a general logic to prevent gear retract on the ground?
It does. There are several near/far prox sensors dotted about. To get the gear to move on the ground the prox sensors need to be 'gagged' with metal slivers to simulate a 'near' target position. The computer logic will then let you raise the gear lever on ground. Assuming the gear pins are fitted the doors will open the gear will shudder a bit when the 'up' line pressurises and we all breath again. :O

The rumour network has suggested that the eng was replacing a landing gear lever module. An unconfirmed rumour suggests that the crew came along, saw the nose gear pin in place and removed it prior to the function test. Personally I find that hard to believe but it will stir the pot until we know more. :E

Glad no one was hurt. Could have been nasty. :ok:


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