Multi-Function Display

A multi-function display (MFD) presents information drawn from a variety of aircraft information systems. Many installations allow overlay or inclusion of systems indications in the primary flight display (PFD), in addition to the primary flight instrument indications. By allowing you to view information provided by any one or combination of the installed systems, the MFD prevents the need for a separate display for each system. As does the flight management system (FMS)/area navigation (RNAV) unit, the MFD allows you to select different pages from different chapters that display information provided by various aircraft systems. Other controls allow you to combine information from multiple systems on one page. In many installations, the MFD serves as the backup or faildown display for the PFD. You should have a working knowledge of the faildown selection procedures and how to select the necessary data displays for the current flight phase. The controls provided by one MFD are shown in Figure 5-1.

Figure 5-1. Selecting pages on an MFD.

Figure 5-1. Selecting pages on an MFD.

Invest the time required to become a skilled user of the MFD. Familiarity with the capabilities of the MFD not only increases the information available, but also allows quick access to that information for safe flight decision-making.

Essential Skills

  1. Program the multi-function display to show data provided by any aircraft system.
  2. Determine how many data displays can be combined in one display.
  3. Know how to select the PFD displays on the MFD, if available.
  4. Determine which data displays can be overlaid onto the PFD as well as the MFD.