A320 ENG 1(2) EIU fault
According to A320 FCOM, the following consequences affect the aircraft when ENG 1(2) EIU fault alert is triggered:
‐ Affected engine start is lost
‐ Autothrust control is lost
‐ Thrust reverser on the affected engine is lost
‐ When idle is selected, only approach idle is available
‐ Bleed corrections on N1 limit are lost.
Also according to FCOM, with the ENG 1(2) EIU fault, the INOP SYS are:
- A/THR
- REVERSER 1(2)
- ENG 1(2) START
I understand the A/THR is lost with EIU fault (1+2 lost). But anyone can explain why the A/THR is lost with a single EIU fault?