Thanks
But bck to my previous problem
>>>After Engine start or during flight suddenly the Radio panel and Autopilot panel shuts down.
It is not possible to tune VHF, VNAV and ADF in the radio panel and not possible to power on the autopilot panel>>>>

Ok, simply turn it shortly to "off", that should be enough  Smiley

>>>In addition I would suggest to turn always the "Nacelle preheat" switches to "on" - this avoid problems with freezing systems. <<<<

done, one flight without problems but flight just EDDK-EDDV freezing NAV, VOR and Autopilot suddenly during taxi.
Sorry, but if this problem not solved I am not willing to use C-130 again. :-[ abslolut frustration