Why does the green hydraulic pressure and the yellow hydraulic pressure decrease slowly when I turn on the fire alarm test? Is this a system bug?
In addition, when I turn off the two main batteries and GEN1, 2, the power system will recover when the takeoff speed exceeds close to 120 knots. Is this the emergency power taking over the system? If so, then "EMER GEN" on ECAM Why hasn't it changed?