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SQ A330/300 nosewheel collapse

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SQ A330/300 nosewheel collapse

Old 13th Oct 2015, 22:13
  #41 (permalink)  
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Apparently engineers were changing Landing Gear Control and Interface Unit #2, did a retraction test but hadn't put the pins in
A "retraction test" for a simple LGCIU replacement???
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Old 13th Oct 2015, 23:37
  #42 (permalink)  
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The nose gear never goes up - the nose goes down.
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Old 15th Oct 2015, 05:31
  #43 (permalink)  
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When i was a fresh young engineer working for a certain Australian airline we had an accident in which an apprentice was crushed to death under the nose of a B707 which was having new steering actuators cycled ... no damn down lock fitted and no one outside the aircraft keeping an eye out for anything or anyone! The kid was only about 17yo.

Following that dreadful accident we continued to have a (admittedly brief) running skirmish with certain flight crews who persisted on removing the nose gear down lock as soon as they saw one; notwithstanding that we had clear SOPs for demonstrating their removal prior to push back.

Clearly, that lesson needs to be taught yet again. But thank heavens no ground staff were ground up on this occasion ...
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Old 15th Oct 2015, 05:44
  #44 (permalink)  
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But thank heavens no ground staff were ground up on this occasion ...
Amen to that!!
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Old 15th Oct 2015, 07:17
  #45 (permalink)  
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Video of collapse

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Old 15th Oct 2015, 09:45
  #46 (permalink)  
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barit1 ; Training for the ARB at Heston, I am sure someone told me that the offset nosewheel was because the autoland was so accurate, on-set nosewheels would hit every single C/L and annoy us drivers ! Yeah, failed the ARB.
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Old 17th Oct 2015, 11:51
  #47 (permalink)  
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Back in SIN now - didn't get a clear view but it looks like it's still sitting in the same spot but with tail/other logos blacked out. Is it a case of deciding whether or not economical to repair?
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Old 18th Oct 2015, 02:24
  #48 (permalink)  
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Typical Airbus, drops gently down on nose and it's stuffed beyond economic repair!!
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Old 18th Oct 2015, 03:15
  #49 (permalink)  
Join Date: Jul 2012
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Airbus AMM for LGCIU replacement doesnt say to put in gear pins, just a precaution that the landing gear doors may operate and gear indications maybe erractic. no mention of any requirement to pressurise Green system so interesting that it unlocked and collapsed
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Old 18th Oct 2015, 06:47
  #50 (permalink)  
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Originally Posted by ACMS View Post
it's stuffed beyond economic repair!!
What evidence do you have for that statement?
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Old 18th Oct 2015, 06:49
  #51 (permalink)  
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Obviously I don't Dave, I was sarcastically commenting on the post above mine by UnderneathTheRadar.

Knowing Airbus it could be true but I doubt it.
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Old 19th Oct 2015, 07:48
  #52 (permalink)  
Join Date: May 2008
Location: Hong Kong
Posts: 171
...they'll usually scramble and leave the flight deck in a hurry if an engineer asks them to touch the gear lever on the ground.
The pilots must know then..
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Old 19th Oct 2015, 13:01
  #53 (permalink)  
Join Date: Feb 2002
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I'm just curious to know why door tests on the A330 can't be done without gear lever movement. On a 747-400, for example, you can manually release the door, then pressurise the #1 hydraulics system... The door will go back up.
You can lower and raise the doors independently of the gear. There are mechanical handles in/near the MLG and NLG thatwill release the door locks. Hydraulic power is necessary to move the handles to the closed position. You cannot put the handle to closed and then run up to the flight deck and put the hydraulic pumps on. A good safe system.

In this case however someone has deemed it necessary to cycle the gear lever by the looks of things.
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