For those interested in this subject, you can find a good deal of relevant data concerning FAA's latest thinking by going to site
www.rgl.faa.gov and then choosing Special Conditions and next search for 787-8 and you will get all proposed and final Special Conditions at present for 787.
Regarding fire and FST, I refer all to Final Special Condition "Boeing Model 787-8 Airplane; Composite Fuselage In -Flight Fire/Flammability Resistance" and please read in detail. Also two Proposed Special Conditions should be of interest, namely Crash-worthiness and Fuel-Fed Wing Tank fire. Both of these should be final in next month or so.
Hope of help and interest.
Amicus