Qantas Gear Failure.........Sydney

[ACMS]

BandH: you following me now? another bitter anti-union Pilot................mmmmmmmmmm

I don't mind admitting when I'm wrong, didn't need the command course in CX to teach me that simple piece of courtesy. Seems as a direct entry F/O you're command course might be quite a way off So enjoy the back seat for a while yet.


I still say that cycling it more than once is folly, and to my way of thinking against the Airbus Fcom 3 checklist. Do you think it's wise to cycle a landing gear that may have problems 3 times? Can't you see how it could be made a lot worse by repeated cycling? Do it once and then use the Altn ext.

[404 Titan]

OK this thread is getting silly. The procedure for the A330/340 is to recycle the gear to change the LGCIU over. If after one cycle this doesn’t get the gear down you do and emergency gear extension remembering that you won’t have any nose wheel steering after touch down due to the nose gear doors remaining open. Under no circumstances do you cycle the gear multiple times because after one cycle you have essentially determined the problem isn’t with the LGCIU’s but is most likely mechanical.

[blueloo]

A380 - did you get a number plate and phone number done too?

[1746]

The reason there is no nosewheel steering after an alternate extension is that all Green System hydraulic pressure to the landing gear is bypassed which allows the gear to free fall.
It is also the reason why gear doors are not retracted.

[404 Titan]

1746

Correct.

[ACMS]

Ok, for the benefit of Airbus 380:

Mr NSEU said in post #11

Who are "they"? I spoke to an engineer working on the defect... and he said otherwise. He said that the crew cycled the landing gear several times, but kept getting the same faulty indications.

I then voiced my concern over multiple attempts to get the gear down citing our own Boeing proceedures and COMMON SENSE.

I then corrected myself AFTER reading the A330 FCOM 3 and ringing an Airbus mate

I then further said that I still thought 3 cycles was stretching the intent of the FCOM a bit. To which 404 titan basically agreed.

So you see, I didn't start the "cycled 3 times" suggestion.

So, Mr A380 man, get down off your high horse my friend.

[ACMS]

Can you read A380????????????????

You probably think the A380 is a nice looking aircraft as well

Somebody ELSE suggested they cycled the gear 3 times.

To which I basically said "mmmmmmmmmm sounds suss, the Boeing manual says......."

I then corrected myself after looking at the manual AND discussing it with a very experienced ( 10+ years on the Bus ) Captain and corrected my post.

Although the 777 is a Boeing and the Airbus is a ..............well, Airbus they are still Aeroplanes with quite a few similarities. One is not to cycle the gear just incase it gets worse. The 330 allows ONE cycle to change to the other LGCIU. Repeated cycling of the gear is just crazy. Airmanship and plain good ol common sense doesn't change with the aircraft type.

Anyway..............you go back to reading and comprehension class.

And I'll promise to look deeper before I leap next time............ok

Climbs back up to second deck and looks pityingly down to 777 light twin

fill ya boots mate, while your broken down again I'll be winging my way ( at considerable profit levels ) to my destination.

[NSEU]

Somebody ELSE suggested they cycled the gear 3 times.

Indeed... and there will be an investigation into why the crew wasted so much time analysing the problem... and landed with only 2.7 tonnes of fuel.

If it was a broken brace or something, I can envisage it sticking in a fuel tank multiple times or breaking hydraulic lines.

By the way, Engineering told them if it's ok on the ECAM, then land. The annunciator lights use separate sensors... and a discrete card in the #1 LGCIU (only). Any malfunction of downlock sensors would have shown up as a message (there were none).

Maybe Airbus will add a comment about cycling the gear unecessarily in a future FCOM version

[airbusthreetwenty]

I'm surprised the mods haven't jumped on this one yet.