One area where the Study may have gone wrong is they looked at Manufacture "Date of 2003" and earlier and "After 2003".
It is Certification Date of the Original Aircraft that is important as that sets forth the Standard to which the Aircraft is designed, built, and certified.
A new build Aircraft can still have non-Crash Worthy Fuel systems.
So any statistic that relates to Post Crash Fires and uses Year of Manufacture as a Filter is meaningless.
Or....do I miss something?
Divided the fatal accident data from 2008-2013 into two groups:
(1) Rotorcraft manufactured in 2003 or prior to 2003
(2) Rotorcraft manufactured after 2003