Does anyone recall (or have access to) what the required drill was for both a F PUMP FWD and a F PUMP AFT prior to Rev 12 (Jan 2014) of the Airbus Emergency Check List?
There was no drill for the FAILURE of BOTH Transfer Pumps before the Main Tank was empty, if that is what you mean.
Having noticed this, not log after we got our 135, I can recall taking off with both pumps switched OFF(on purpose) to see what would happen. In the cruise, the contents of the Main Tank reduced as the fuel went through the "overflow"(correct term forgotten) into the Supply Tanks for a while, but at around 250kgs indicated in the Main Tank, the Supply Tank contents started to reduce, with the Main Tank contents staying the same.
So, if BOTH Transfer Pumps failed below 250kgs in the Main Tank, you would only have the contents of the Supply Tanks for use.