Originally Posted by elfinknight
I was under the impression that the A320 use of yellow and green hydraulic systems to the brakes were completly seperate systems with no possibility of fluid transfer, right down to two seperate supply lines to the brakes, and operating seperate pistons.
It seems from the history of this thread that the interpretation of the word "possibility" depends on whether you are a pilot or engineer considering the normal operation of the systems or whether you are a systems safety analyst considering what can go wrong.
They don't transfer fluid during normal operation. However, there appear to be ways to get cross leaks that involve something not doing what it should do.
PBL