B757;Stby bus fail;Ils tuning
During stby bus failure on the B757 (AC bus failed among others). All ILSīs become inop. (I haven't experienced or seen this personally). Why is this?
The C ILS is on the stb AC bus but but that does not explain the total failure. Is the ILS tuner maybe directly linked to the C ILS and not the others?
Regards,
G