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Old 11-05-10, 03:46 PM   #32
Oberon
Lucky Jack
 
Join Date: Jul 2002
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Quote:
Originally Posted by CCIP View Post
Yup... the plot thickens

http://www.bbc.co.uk/news/world-asia-pacific-11702365

I guess Airbus was quick with their "flame war" response

also, a bump to my previous post - anyone have any technical explanation for why Engine 1 would fail to shut off?
Only thing I can think of is damage to the wiring caused by the wing damage by Engine 2 so the kill command didn't make it to the engine or there was a cross wire which kept power to the engine. Either which way though I would have thought a total kill of all engine power and switch off the APU would have shut it down. Still, not an aircraft engineer so can't say anything for definite.

I also just stumbled across this whilst looking up historical cases of fan blade failure (which I'd consider as likely the cause of this engine blowout):

Quote:
On the early evening of 31 January 2001 at Melbourne International Airport, Boeing 777-300 A6-EMM aborted its take-off run at low speed as a result of a failure within the left (No.1) engine. Although the failure was associated with a large compressor surge within the engine, no subsequent fire developed and the aircraft was able to safely return to the terminal building on its remaining serviceable engine.

Failure of the RB211 Trent 892 engine as fitted to the aircraft was a result of the release of a single blade from the low-pressure compressor (fan) rotor disk. The blade release caused extensive damage to the remainder of the fan and the intake shroud, however the event was fully contained. The only escape of debris from the engine was small, low energy fragments, causing minor damage to the fuselage and the opposite engine.
Apparently the report also mentions consequences of sustained flight operations in a hot environment, the need for more power for take-off in the aforementioned environment and the effect this has on engines.
Regrettably the full report is no longer online.
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