SYS A
nose wheel steering
alt brakes
landing gear
tail skid
SYS B
alternate nose wheel steer
normal brakes
flaps / slats
power transfer unit
how much more output from engine driven pump than electric
six times more
sys a can it loose all of its fluid
yes when leak is below electric pump
sys b leak affect the standby hydraulics system
no
what does ptu do and how
powers autoslats and leading edge flaps and slats when sys b is depleted with sys a fluid
rf light illuminates when
below 76%