Hi,My radios NAV1, NAV2 dont work anymore in auto mode. Any ideas?thanksJoao

FMC auto tuning failed?More details would really be helpful.Martin767 fetishistIt's a lot like life and that's what's appealing

Hi Martin,Thats the case. The FMC does not change the freq. on radio anymoreI have tried auto-man-auto with no sucessthanks againjoao

flightplan loaded, activated and executed?can't think of anything elseKind regards,Stephan Haas

Yep, FP is okI have a new radiostack as posted here somewhere, not the original one. could this be the prob?

What I meant is - just to be sure - are you certain that the FMC auto tuning didn't actually "fail"? (i.e. as a PIC "failure")Martin767 fetishistIt's a lot like life and that's what's appealing