NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-40
Page
14
Code
01
MARCH 30, 2001
FMS INDICATION ON THE PFD
1 - VERTICAL ALERT ANNUNCIATION
− Label: VTA
− Color: Amber
− The VTA is displayed when the vertical alert bit is received from
the FMS.
2 - VERTICAL DEVIATION DISPLAY
− When the FMS VNAV is selected the Vertical Deviation is
activated.
− The Vertical Deviation Display indicates the vertical deviation
between the airplane and the selected vertical path.
− Label: FMS
− Color: Amber
− The FMS label and the scale are white.
− If the FMS is the navigation source for only one side, the
pointer will be magenta, otherwise it will be amber.
3 - MESSAGE ANNUNCIATION
− Label: MSG
− Color: Amber
− The MSG is displayed when a message is available on the FMS
Panel.
4 - GROUND SPEED/TIME TO GO DATA
− Label: GSPD for Ground Speed.
TTG for Time To Go.
− Color: Labels and units are white.
− For single configuration, if the FMS is the navigation source
for only one side, the GSPD and TTG readouts will be
magenta, otherwise, they will be amber.
− For dual configuration, if each FMS is the navigation source
of the respective side, the GSPD and TTG readouts will be
magenta. Otherwise, they will be amber.
− The Ground Speed unit is knots (KTS) and the Time To Go unit
is minutes (MIN).
− The resolution of the digital values is 1 unit.
− For invalid values, the digits will be replaced with three amber
dashes.
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