Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

Cracks found in A380 wing ribs

Tech Log The very best in practical technical discussion on the web

Cracks found in A380 wing ribs

Old 8th Jan 2012, 12:12
  #41 (permalink)  
 
Join Date: May 2011
Location: Moscow
Age: 49
Posts: 38
Lufthansa half 380 fleet in hangar

Was it the reason to have 4 out of 8 Lufthansa's 380s in the hangar (2 inside 2 nearby) in EDDF on Dec 28th when we were landing from LHR ?
mitrosft is offline  
Old 8th Jan 2012, 13:50
  #42 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 5,176
grounded27

'.......sounds like they were found during routine phase maintenance.....
This one part of your response may not be correct.

I believe the cracks were found on the wing that suffered the uncontained engine failure during the extraordinary repair work.
lomapaseo is offline  
Old 8th Jan 2012, 14:52
  #43 (permalink)  
 
Join Date: Sep 2004
Location: Berlin / Germany
Posts: 10
Lack of flights between Christmas and New Year's Eve.
streetcar driver is offline  
Old 8th Jan 2012, 16:27
  #44 (permalink)  
 
Join Date: Jan 2006
Location: US
Posts: 2,088
Could you imagine the news, and passenger reactions, if the headline said "Cracks causing fuel leaks" and pilots/engineers started posting "that's unsafe and I wouldn't fly it"?

Well, that exact situation(cracks causing fuel leaks) occurred. Fuel leak was a known issue and tracked.

The whole 'what, where, when, why' for any crack needs to be understood.
misd-agin is offline  
Old 8th Jan 2012, 17:10
  #45 (permalink)  
 
Join Date: Jan 2009
Location: Qatar
Age: 64
Posts: 182
To the best of my knowledge, the wings are built in England
(southwest of MCT, just passed the border with Wales)
Reinhardt is offline  
Old 8th Jan 2012, 18:06
  #46 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 5,176
The whole 'what, where, when, why' for any crack needs to be understood
Absolutely

and it is by the professionals, else the regulator wouldn't let it fly
lomapaseo is offline  
Old 8th Jan 2012, 19:44
  #47 (permalink)  

Do a Hover - it avoids G
 
Join Date: Oct 1999
Location: Chichester West Sussex UK
Age: 86
Posts: 2,206
Clearly to some PPRuNers cracks found on the ground early on in an aircraft's career are big bad news.

To engineers they are a beautiful confirmation of the fail-safe aspects of the design.
John Farley is offline  
Old 8th Jan 2012, 19:45
  #48 (permalink)  
 
Join Date: Sep 2010
Location: earth
Posts: 1,342
Airbus indeed must have their hands full. Better to catch something like this sooner than later. Did fuel leaks or a battered wing due to the engine failure or both drive someone into those tanks?
grounded27 is offline  
Old 8th Jan 2012, 19:48
  #49 (permalink)  
 
Join Date: Jan 2008
Location: Brilissia Athens Greece
Age: 88
Posts: 8
Wing craks in A380.....

Only as a joke is acceptable the declaration the Aviation Week!!!
Serafim Kamoutsis is offline  
Old 8th Jan 2012, 20:27
  #50 (permalink)  
 
Join Date: Mar 2010
Location: St. John's Wood
Posts: 286
Only as a joke is acceptable the declaration the Aviation Week!!!
Sorry, Serafim, whilst I realise that English is probably not your primary language, your post makes absolutely no sense.
Abbey Road is offline  
Old 8th Jan 2012, 22:00
  #51 (permalink)  
 
Join Date: Sep 2010
Location: earth
Posts: 1,342
Safety

Hope you did not mis-read my post. From what I get the aircraft that were found with cracks in the ribs were not due to routine maintenance. I would like to confirm that the initial investigation into the wings were as a result of fuel leaks and possibly the un contained engine failure probably causing damage to the lower wing skin. If this is true, un-scheduled maintenance found this serious problem that will likely be found on most A380's in service if they decide to look.
grounded27 is offline  
Old 20th Jan 2012, 10:54
  #52 (permalink)  
 
Join Date: Nov 2010
Location: Speke Aviation Heritage, Liverpool
Age: 27
Posts: 101
In light of the daily fail putting up ANOTHER article about this, someone has now commendted on it:

"Cracks in any metallic frame are a sign of failure..... IT IS NOT METALLIC... It is composite Fibre.... It is also in an area of brackets that are there for production purposes... If it was possible to take these out after the wing is finished they would have done... They have no Structural Component to the finished plane.... It has been stated over and over again... Airbus say its safe, the bodies that regulate aircraft say its safe. The conspiracy theorists are have a field day over this"

Is this true about the location and importance or are they talking rubbish?
mat777 is offline  
Old 20th Jan 2012, 15:40
  #53 (permalink)  
 
Join Date: Jan 2011
Location: London, UK
Posts: 143
MORE cracks!

BBC News - A380 wings to be checked for cracks, EASA says

Anyone seen this article on today's BBC?
ilesmark is offline  
Old 20th Jan 2012, 15:53
  #54 (permalink)  
 
Join Date: Aug 2010
Location: Worldwide
Posts: 1,456
EASA Airworthiness Directives Publishing Tool
flydive1 is offline  
Old 20th Jan 2012, 17:41
  #55 (permalink)  
 
Join Date: Jan 2008
Location: uk
Posts: 788
Originally Posted by flydive1 View Post
"Following an unscheduled internal inspection of an A380 wing"

Well, I guess that's one way to describe aftermath of QF32
infrequentflyer789 is online now  
Old 20th Jan 2012, 17:50
  #56 (permalink)  
 
Join Date: May 2011
Location: Derby/EMA
Posts: 164
Source of mine tells me they suspect faulty heat treatment of the material in certain batch numbers during manufacture may be the problem, whatever the case im sure it will be sorted quickly
Topspotter is offline  
Old 20th Jan 2012, 17:54
  #57 (permalink)  
 
Join Date: Dec 2007
Location: Itinerant
Posts: 627
As the Aviation Herald says, the AD issued today reads exactly like an Emergency AD -- though EASA isn't calling it that.

News: Airworthiness Directive regarding Airbus A380 wing cracks

If it walks like a duck, and quacks like a duck...

grizzled is offline  
Old 20th Jan 2012, 18:09
  #58 (permalink)  

Eight Gun Fighter
 
Join Date: Apr 2000
Location: Western Approaches
Posts: 1,127
Anyone Else the Least Bit Concerned?

A380 wings to be checked for cracks, EASA says Airbus said there was no immediate threat to safety. (maybe later then)

Twenty Airbus A380s will have to undergo checks for cracks in their wings, the safety regulator has said.

The European Aviation Safety Agency (EASA) said the planes, a third of the current fleet, would undergo a "visual inspection" for cracks.

A few planes, which have carried out more than 1,800 flights, will need inspections within four days, it said.

Airbus said the cracks were not an immediate threat to safety. If cracks are found it will carry out repairs.

The problems could affect planes operated by Singapore Airlines, Emirates and Air France.

Cracks

The agency said it has determined that the cracks may develop on aeroplanes after a "period of time" in service.

"This condition, if not detected and corrected, could potentially affect the structural integrity of the aeroplane," said the agency in its directive ordering the inspections.

This is the second set of cracks found on A380 wings.

The first, which were less serious, emerged during repairs to a Qantas A380 following a blowout of its Rolls Royce engine in November 2010.

That prompted more widespread investigations and more serious cracks were found in the UK-made wings on Thursday.

If more, similar, cracks are found aircraft may be grounded in order to carry out a repair programme agreed between Airbus and regulators.

Repairs

Only planes which have carried out more than 1,800 flights are being targeted urgently, those which have flown between 1,300 and 1,800 flights must be tested within 6 weeks.

"Airbus confirms that during routine inspections some additional cracks have been found on a limited number of non-critical brackets (known as rib-skin attachments or wing rib feet) inside the wings of some A380s," the company said in a statement.

However EASA warned further steps may be needed.

"As a result of the on-going investigation, further mandatory action might be considered."

(manager tech ops, me)
Rollingthunder is offline  
Old 21st Jan 2012, 00:06
  #59 (permalink)  
 
Join Date: Jul 2006
Location: Around the block
Posts: 347
It's weird.

Brand new aircraft, top engineering and latest technology.

Cracks in the correct places that are expected is one thing, especially after years of service.

But this is different. Very different. Airbus didn't expect them, and their official statement makes me think they are as surprised as the engineers seeing them for the first time.

I am sure they will all be grounded until thorough checks and tests has been done, together with necessary repairs... And this will cost Airbus more money and reputation.

There is nothing like a reliable and safe Boeing.
Viking101 is offline  
Old 21st Jan 2012, 00:31
  #60 (permalink)  
 
Join Date: Jan 2008
Location: On the lake
Age: 78
Posts: 661
My understanding is that the cracking issue is an assembly problem, neither design nor fatigue related. No design changes required, but more careful attention to assembly processes to avoid pre-loading the structure.
twochai is offline  

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.