vilas
There is no requirement to correct an imbalance, until the ECAM fuel advisory is displayed.
Correct. With all engines operating normally, then fuel used should be almost symmetrical and the ECAM advisory limit is there to reduce pilot work load.
So you do not have to do any thing at EFATO. When the advisory appears apply the procedure. That is how it is taught now.
When you have an engine failure, the fuel used will be asymmetric and you should anticipate that there may be a requirement to balance fuel. There are two types of pilots who:
1) Do nothing until ECAM says do something (which may be during a high work load situation)
2) Anticipate the problem and during suitable low work load opportunity, check there is no leak and then take steps to mitigate the potential fuel imbalance.
Which sort of pilots do you train?
Lessons Learned