Cockpit Side

OXYGEN MASK

FLOW INDICATOR

• A bright yellow star when visible indicates that oxygen is flowing.

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TEST/RESET BUTTON (SPRING LOADED)

• Pressing this button with the mask stowed tests the oxygen mask and activates the microphone. The flow indicator star momentarily blinks and oxygen flow will be audible through audio system.

• Pressing this button with the mask not stowed and the mask box door closed shuts off the oxygen flow, turns off mask’s microphone and returns the communication from the cockpit speakers to the headsets.

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OXY ON FLAG

• This flag appears whenever oxygen is supplied to the mask.

STEERING HANDWHEEL

STEERING HANDLE

• The handle must be pushed down to engage the steering system.

• Releasing the handle will enable rudder pedals mode, keeping it pressed enables handwheel mode.

• Rotating the handwheel left or right commands steering.

• Activation of the nosewheel steering disengages the rudder pedal steering.

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NOSEWHEEL STEERING

• To engage nosewheel steering:

  • Hydraulic system 2 needs to be pressurized.

  • External steering disengage switch must be in the engaged position.

  • Handwheel steering must be pressed.

• Used for low speed control and whenever a wider turn angle is required.

• Maximum steering angle of +- 76 degrees allowed up to 10kt and decreases as speed increases

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STEERING DISCONNECT SWITCH ON GROUND SERVICE PANEL

• STEER OFF EICAS will be present during the after start checklist (CA pushed down tiller) if the steering disconnect switch on the ground service panel is not in the down and guarded position.