ENTER KEY

• Data that can be changed is indicated by a cursor ( black letters on a light background )
• The enter key is used to commit data that has been entered using the number keys

DATA KEY

• To obtain information and status about the FMS, its NAV Data Base, and the attached sensors which operate with the FMS. Also used to make additions, deletions, or changes to pilot defined locations.

NAV KEY

• Displays all navigation data. There are normally three Navigation pages. Additional pages are available when APPROACH or HEADING is selected.

VNAV KEY

• Push to define a vertical flight profile along the flight plan route.

DIRECT TO KEY

• Accesses to the Direct To page. this page is used to proceed direct to a point

LIST KEY

• Provides a list of options appropriate to the data to be entered.