Hydraulic System SGR
With the loss of both System A and System B, the Standby System powers the Thrust Reversers, Standby Yaw Damper, Standby Rudder PCU, Rudder
and Leading Edge Flaps and Slats
for extension only. Primary flight controls are operated by manual reversion and landing gear may be extended
manually but not retracted. Braking is provided by accumulator pressure and no anti-skid or locked wheel protection is available.