Thanks Organfreak..interesting piece re that one
Swissair 111 Reconsidered | Airliners.net
& from that:"Even though the use of Kapton wire and Mylar/MPET insulation in the construction of new aircraft has been banned, there is still an enormous number of aircraft flying that contain these dangerous and defective components. "
That was written in late 2007. I wonder how many planes still in service have this wiring?