TWICE AS FAR

 

SWISSAIR 111

CRASH INVESTIGATION

 

 

 

- EXTRACT FROM FILE NOTES -

 

 

FOR

- 2000 JUN 27-

 

00-06-27            .....  Just before leaving, checked the email and a reply had been sent by Jim FOOT as follows:

From: Foot, Jim [Jim.Foot@tsb.gc.ca]     Sent: Tuesday, June 27, 2000 1:18 PM

To: 'tom.juby@ns.sympatico.ca'

Subject: RE: Wire Exhibits

Thanks Tom,

Jim Brown did the XPS analysis on the wire insulation and there not actual Tefzel as advertised but PVDF, a polyvinyliden fluoride. They do not contain filler material such as Calcium etc. as we suspected. I'm going to have Jim do a Kapton sample to identify which type of polyimide film it is.

Brown's report will not be available mid-July (surprise) but perhaps a week later. I'll let you know.

Best regards,     Jim Foot

             FOOT uses the term ‘Calcium etc.’ and does not mention magnesium.  However, since the information was that the filler likely contains magnesium, and there is no filler present, then the ‘etc’ includes magnesium.  So there is no magnesium in any of these wires.  The Kapton wire is forwarded for testing, but that has already failed to show magnesium when the Seattle wires were AES examined.  We are beginning to use up some of the likely sources.





 

 

 

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