Originally Posted by
vilas
I meant live engine side fuel pumps. Gravity feed with OEI is not simple it requires bank towards live engine which on approch will complicate the matter. There's no issue with switching off live side fuel pumps. Even if you don't it should be fine as long as fuel pumps on the dead side are working.
The problem is that the fuel from the dead side will be pumped into the live side, but those pumps are off. In the low fuel scenario Airbus advice is to switch all pumps on regardless of the indicated tank contents, so there's no risk of inadvertent fuel starvation provided the cross-feed is open and all pumps are on.