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Malaysian 777 engine problem in Stockholm

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Malaysian 777 engine problem in Stockholm

Old 6th Nov 2006, 11:02
  #21 (permalink)  
 
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Originally Posted by bobdbuilder
If the engine was shut down by the crew, why did they go dump fuel over the ocean?...risking loosing the second engine.

Id rather be on the ground having done an overwight landing rather then risk being over the ocean when i loose the second engine.

Or are procedures different on the 777?

Thanks

If oil press drops to zero there are not too many options......
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Old 6th Nov 2006, 14:35
  #22 (permalink)  
 
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If the engine was shut down by the crew, why did they go dump fuel over the ocean?...risking loosing the second engine.
Id rather be on the ground having done an overwight landing rather then risk being over the ocean when i loose the second engine.
Or are procedures different on the 777?
Guess it's early season, but the 'monday morning quarterbacks' are out
Whatever decisions were made in the cockpit bob, I guessed they were the right ones as they got the plane down in one piece with all lives accounted for
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Old 6th Nov 2006, 16:21
  #23 (permalink)  
 
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Sorry this is a bit slow, I have been at work all weekend in the hangar at ARN.
The D Duct inner wall disintegrated on ratation. What you can see is glass fibre deris leaving the aircraft. The crew were advised by ATC. At 6000ft, the fan air stream pushed the exhaust nozzle into the core exit and the engine surged. The crew pulled it back to idle, but had no cockpit indications. The engine was left running at idle until it landed after dumping 60tons of fuel. The engine only suffered impact damage to the exhaust nozzle, a firewire and a oil scavenge pipe. Boroscopes OK. The left flaperon also suffered impact damage and is being changed.
We have changed the D duct., replaced blankets in the left D Duct, replaced the fire wire and the oil tube. We are awaiting a sling for the flaperon which comes from BA tomorrow morning.
All the spares came on a MH freighter which was rerouted to ARN.
Boeing Seattle and RR Derby have inspected the damage and concur that it was delamination, and no FOD or engine defect.
It has happened to the Trent 892 before and is the subject of an AD.
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Old 7th Nov 2006, 17:56
  #24 (permalink)  

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Have a look at this, particularly remark about people purporting to be maintenance engineers.
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Old 7th Nov 2006, 18:43
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Originally Posted by Bus429
Have a look at this, particularly remark about people purporting to be maintenance engineers.
Do I have to attach a copy of my B777 AMEL?
I like the way Flight copied my comments verbatim.
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Old 7th Nov 2006, 20:06
  #26 (permalink)  

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Initial inspections teams from by Boeing Seattle and from R-R have concluded that blade delamination on the core of the reverser was the probable cause, a source within the maintenance provider has told Flight. No engine defect or operational issue was found by preliminary inspections.
Oh, come on Flight Global. At least have the conviction to acknowledge your real "source"!
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Old 7th Nov 2006, 21:24
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...R-R have concluded that blade delamination...

....No engine defect or operational issue ...
How's that again?
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Old 8th Nov 2006, 02:46
  #28 (permalink)  
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Same D Duct came off a Cathay 777 Trent at Bangkok take off in 2004. Except a big piece landed on someones car! No wonder an AD out on it.
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Old 8th Nov 2006, 05:03
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Looks like you're only purporting to be an engineer Steve.
Good excuse to use when you get a real crippler of a job.
" Sorry Boss, can't do that toilet tank - i'm only purporting to be an engineer! "

Fargoo
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Old 8th Nov 2006, 07:17
  #30 (permalink)  

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Reading the FAA report and it's AD.All I can say is look at my moniker and the cracking problems on the root and shear key have been resolved.I will say no more.
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Old 8th Nov 2006, 09:10
  #31 (permalink)  
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Red face From those nice Flightglobal guys

Sorry, sorry, no disrespect intended.

1. We handled the story clumsily. Apologies.
2. Should have linked to Pprune. Apologies, nothing sinister, just in a rush.
3. Unlike other sites we don't accept anonymous forum credentials at face value. The guy involved has no idea who or what Swedish Steve is.
4. Unlike other sites we don't nick people's photos and we tracked down and paid the photographer as we always do.

Not our finest moment, but just a guy trying to do the right thing.

Algy
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Old 8th Nov 2006, 09:10
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This quote has got me stumped ,

"Initial inspections teams from by Boeing Seattle and from R-R have concluded that blade delamination on the core of the reverser was the probable cause, a source within the maintenance provider has told Flight."

Besides the atrocious grammar, since when have there been blades on the core of a thrust reverser? Either that or I must be missing something very critical here.
I am a bit surprised that a website that deals with aviation would let this one slip by.

It is amazing that the writer has accused someone of supposedly being a maintenance engineer when he himself seems to know far less . Any way, thanks for the updates Swedish Steve !

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Old 8th Nov 2006, 09:24
  #33 (permalink)  

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Swedish Steve,
I wasn't implying you were not an AME; your post indicates you are! I was having a go at Flight Global who, to their credit through Algy's post, have clarified their position.
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Old 8th Nov 2006, 13:02
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I simply substituted the word vanes for the word blades in the article and read away content
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Old 9th Nov 2006, 05:34
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Originally Posted by lomapaseo
I simply substituted the word vanes for the word blades in the article and read away content
"Initial inspections teams from by Boeing Seattle and from R-R have concluded that vane delamination on the core of the reverser was the probable cause, a source within the maintenance provider has told Flight."

Mmmm.... still don't quite get it . Perhaps he misspelled bad?
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Old 9th Nov 2006, 08:33
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Cascade vanes?
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Old 9th Nov 2006, 10:34
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Originally Posted by BAe146s make me cry
Threemiles

Sorry, engines not touched?? You've got to be joking!

Even the very latest FADEC Powerplants require attention,
AND certainly during a maintenance check!

BAe146??
Complete service would have been done specifically fluids, seals gaskets and filter, mag plugs, spark plugs and maybe a borescope,
not touched yes he must have been kidding
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Old 9th Nov 2006, 10:36
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Originally Posted by JetMech
"Initial inspections teams from by Boeing Seattle and from R-R have concluded that vane delamination on the core of the reverser was the probable cause, a source within the maintenance provider has told Flight."
Mmmm.... still don't quite get it . Perhaps he misspelled bad?
as the cascades are in the cold stream where has the smoke come from ?
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Old 9th Nov 2006, 13:08
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Originally Posted by matkat
as the cascades are in the cold stream where has the smoke come from ?
broken external oil scavange line ?

That stuff is smokey
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Old 9th Nov 2006, 16:54
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Well MRI is flying home as I write.
We took it out for runs Wed night and the engine performed normally.
The aircraft left ARN 0347 this morning. (no night jet ban here).
The work to the engine consisted of a firewire replacement and two thermocouples and the exhaust nozzle. Rest of work was on the D Ducts and the flaperon.

The smoke you can see was fibreglass.
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