SDU

31-63-05A	SDU

Applicable to: -

- On ground or in flight

In the case of alerts being displayed on the EWD:

Use the ECAM/ND SWITCHING selector to display the system page on the selected NDU.

In the case of failure of the AC BUS 1:

If all the Display Units are lost:

Apply the ELEC AC ESS BUS FAULT alert procedure: Refer to FCOM: PRO-ABN-ELEC-ELEC AC ESS BUS FAULT.

NOTE:

The AC ESS BUS is recovered when the AC ESS FEED pb-sw is set to ALTN.