Experts track the spark of potential killer.
You can read his request FAX to Boeing below. Data on the number and nature of electrical of electrical anomalies resulting from damage or degradation to the insulation material itself. A briefing on the evolution of insulated wire types, including the advantages and disadvantages of various types of wire insulation over the years. This would include a briefing on how Boeing researched, developed and came to write the specification of 13-60 wire. I realize this is a tall order and would entail a lot of work on your part.