Dear all.
I have sufferred from following faults.
Status MSG: ENG IGN L1,2(R1,2)
Maint MSG: 74-61491, 74-61492, 74-61501, 74-61502
The msg appear during starting engine almost 2 days a week.(my compay operate 11 airplanes)
I did this ground test on the MAT: 71-80 Left (Right) Engine, System Test, Ignition System (L (R) Eng). The audible test was always OK.
however, when the msg displayed, I purposelessly replaced components(ex. Igniter Plug, Cable, Exciter, ERU, EEC . . . ) due to fear.
Today the msg still on. What shall I do next step?
Shall I change eng type? RR or GE??
please, give me a tip...
Thanks.