question for engineers
Is ACP3 on A320 independently supplied or through the AMU via DC ESS bus?
Nice procedure to recover comms , but I wonder if it's still working on new aircrafts.
FCOM describes the AMU as the brain of communication and it states that ACP 3 works through the AMU.
Now with an AMU unserviceable or unpowered due to DC ESS BUS fault , I really doubt that ACP3 gonna be working.