Collins_MCP_MA_SwitchandLight

Mode Control Panel

Flight Director (F/D) Switch

Left F/D switch activates command bar(s) on the Captain’s attitude
indicator. Right F/D switch activates command bar(s) on the First Officer’s
attitude indicator.

ON –

In flight with A/P ON and F/Ds OFF, turning a F/D switch ON
engages F/D in currently selected A/P modes.
Displays FD in A/P status display if A/P is OFF or engaged in CWS.
Enables command bar display on related pilot’s attitude indicator
Command bars are displayed if command pitch and/or roll modes
are engaged.
Command bars are displayed if command pitch and roll modes are
engaged.

On the ground, arms pitch and roll modes for engagement in
TO/GA and wings level when TOGA switch is pushed.
On the ground, arms pitch and roll modes for engagement in
TO/GA and HDG SEL when TOGA switch is pushed.

OFF – command bar(s) retract from related pilot’s attitude indicator.

Master (MA) Flight Director Indicators (white letters)

If a F/D switch is ON, the light indicates which FCC is controlling the F/D
modes.