Originally Posted by
Fursty Ferret
If Airbus thought it would help, they'd put it in the procedure. It's possible that the yellow pump is incapable of driving the flaps in flight.
If you’ve adopted a particular speed to glide to a suitable landing point and CONFIG 2 has been selected then slats but not flaps will have deployed. The selection of the Yellow pump would cause the flaps to run out. Wouldn’t this decrease glide range? Always thought this was the logic behind the airbus procedure.