System A and B Flight Control Switches
STBY RUD -
Activates standby hydraulic system pump and opens standby
rudder shutoff valve to pressurize standby rudder power control
unit.
OFF -
Closes flight control shutoff valve isolating ailerons, elevators and
rudder from associated hydraulic system pressure
.
ON (guarded position) -
Normal operating position.
Forward Overhead Panel 700/800/900
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