Hi
Just completed a C of A on T2+ under the local Aviation Regulator guidelines and we had a strange FADEC/FLI event as follows:
While on ground, engine to be tested goes to Flight, other to idle
Engine to be tested goes to Manual mode selector
CAD say ENG Manual for engine in test
then u decrease fuel flow by twisting the correct engine grip
Check Low RPM light and audio
Twist grip back to Neutral, stabilize N1
Switch Off engine with selector
wait for N1 = 0%
Engine selector back to Normal (not Manual)
Fadec off
Fadec on
Restart the engine
Now that's where it goes pear shape: Both N1 needles on FLI will go up and down like crazy... pulling a bit of collective does not settle them..
Only way is to shut down both engines and restart as normal
When we checked the second engine as per the above description, we had the same problem and had to shut down both engines again
Since then no further issues, the C of A was completed without a hitch; I queried the EC engineers, but they only have experience on P&W engines, and never had this issue come up with a P&W.
Any ideas?
