PPRuNe Forums - View Single Post - Kapton Wire
Thread: Kapton Wire
View Single Post
Old 31st May 2001 | 04:33
  #1 (permalink)  
Electric Sky
Guest
 
Posts: n/a
Thumbs down Kapton Wire

Apologies if this has been discussed before but I have just seen a Panorama programme on UK Horizons called "Die by Wire". Dramatic title I know so I intended to take it's issues with a pinch of salt. However, the programme based itself around the dangers of Kapton wire in aircraft and came across as being well researched.

For info Kapton is a very thin insulation for wires that has potentially catastrophic consequences should it become the slightest bit damaged in any way. Tests show that it explodes causing fire, and resetting a popped circuit breaker intensifies this.

TWA highlighted concerns about the compound prior to delivery of it's L1011 Tristars several years ago. They once again asked Boeing not to use Kapton on B747s ordered in the 1970s but were "talked around" by a Boeing technical team. However, Boeing came under increasing pressure from other major airlines and also the US Navy who were so concerned that they prematurely retired many aircraft to the desert that were contructed with Kapton wire. Boeing does not use Kapton any more in it's products. Kapton has been linked to many aviation disasters such as the Swissair MD11 crash off the Canadian coast and the Saudia L1011 fire disaster.

What I found most disturbing is that Airbus Industrie still use Kapton wire to this day. Is anyone in the know about this subject as I would be interested to know a more balanced view from my colleagues "inside" the profession.