On Apr 26, 5:54 pm, Newps wrote:
Not all FADEC's fail with the loss of electrical power.

All true FADECs will fail. In a full authority electronic system, no
juice = no electronics.

The PRISM
system will continue to run without electricity. Matter of fact I'm not
aware of any other system that fails with a loss of electrical power.

That's because PRISM (and ePiC) are not Full Authority systems. Not
even close. They're simply electronic aids to timing, fuel flow,
etc. They're no more a FADEC than an electronic ignition on a car
is.

Kev