I visited our plane today. Our fire extinguisher says "Ansul
CleanGuard With DuPont FE-36".
http://www.alltypefire.com/cleanguard.html
Pound for pound these units offer higher ratings than
Halon replacements currently on the market. They are
extremely low in toxicity, and they are not subject
to future production reduction or phase-out.

http://www.firefire.com/Products/fir...cleanguard.htm

--kyler