From: "Tony Ingenoso" 

Aging wiring in the world's airliner fleet has been an issue for a while now.
Its what prompted the initial development of the arc-fault circuit breakers
now making their way into residential wiring standards. The aircraft
industry
was looking for arc-fault breakers a decade before the residential wiring
industry took notice.

The rewiring cost in aircraft is so high they're willing to run it till it fails
and let the special breaker try to prevent subsequent fires. Doesn't help
much with a spark in an explosive atmosphere though...

"Don Hills"  wrote in message
news:UlM+BtgaXa0K092yn{at}attglobal.net...
> In article ,
> Ellen K.  wrote:
> >Yeah, my feeling was also that it was either shot down or sabotaged.
>
> Then they wouldn't have issued all the notices requiring airlines to
> (expensively) check the wiring in the centre tank area, and they wouldn't
> now be requiring the fitment of fuel tank inerting systems that weigh as
> much as 8 passengers and up the fuel bill accordingly.
>
> --
> Don Hills    (dmhills at attglobaldotnet)     Wellington, New Zealand
> It's ironic that people who are too smart to engage in politics
> are governed by people who are not as smart.

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