Collins MCP
Mode Control Panel
ALT HOLD mode is inhibited after G/S capture.

The selected MCP altitude is referenced to:

  • Captain’s barometric altimeter setting for A A/P and F/D as
    selected.
  • First Officer’s barometric altimeter setting for B A/P and F/D
    as selected

Note: After ALT HOLD engages, changes in altimeter barometric
settings do not change the selected altitude reference.