Hello, I have a Tecnam Sierra with 912iS, last week after 2.5 hrs flying, I feel loss power and line A lights get on. I turn off line A and return
my fly with Line B. Tecnam Factory send to me a Fuel presure and also a Bypass return fuel. I think the fuel presure was to high and with this bypass the fuel pressure go down. They conect directly the fuel regulator to return fuel line with a very small hole. I open the fuel filter and no deposit in it, I have to get out the fuel regulator and see it.
I have get out the fuel pumps and check it in my fuel check machine (I work in a garage) and fuel pumps are ok (presure, amp, noise, etc..). Today I going to received BUDS to conect with my ECU and see the faults.
When I resolve my problems I will write again.
Regards