During elec emer the engine generators are not busted but its just the failure of 2 ac busses right? However I do not see ( and it doesnt say) any diagram in the electrical where the APU can supply the aircraft electrical network when the AC busses are inop during elec emer. Thanks for further info.
Guys, Have you seen elec emer diagram where the APU will connect to the aircraft electrical network while AC busses are inop?
Likewise can anyone clarify why the APU can only be started below 100kts on ground while emergency generator is running. Thanks for your help.