05-26-2026, 08:01 PM
(05-18-2026, 08:28 PM)NobbyC_B738 Wrote: ThannkYou Norbert!
both MAIN PANELS ENG PRI in captain side, and ND in Fo side move immediatly when start OC4.
while the alerts start when i touch something referring to BLEED pumps.
many thanks,
Simone
Hi,
I had knob mismatch on the OVH as well and I'm in direct contact with another user who had DU knob mismatch on the MIP. We had the mismatch problems mainly after lights tests and after change of el. states. (e.g. switching to APU power or switching off battery). I could solve for both of us because causes were the same.
Before I can try to help you, I need some information:
1) do you have knob mismatch after switching lights test on or off? Sometimes several lights tests are neccessary to reproduce the problems)
2) do you have knob mismatch after el. state change?
3) do you have some annunciators connected to the 7 additional outputs on the P2 connector of one or more mastercards (output 49 ... 55)?