Office update,
The FAA C441 TCDS A28CE says ....
<font face="Verdana, Arial, Helvetica" size="2">Aviation turbine fuel ASTM D-1655, Jet A, Jet A-1 or Jet B; MIL-T-5624, JP-4 or Jp-5.
Anti-icing additive per MIL-I-27686D, MIL-T-2768E, or Phillips PFA 55MB must be blended into the aircraft fuel in concentrations not less than 0.060% by volume. For emergency use of aviation gasoline and fueling procedures, refer to FAA Approved Airplane Flight Manual.</font>
I will check up on the fuel that we used to use to see if it contains diegme in the prescribed quantities. The company that I used to be with had over 8 years of experience operating the type, and the guys working there were the only ones with the ability to service the FCU’s for the region (break out boxes and bench FCU calibration gear).
The electronic FCU on the conquest is unique amongst the garrets when you compare what the pitch/speed power levers actually do.