BendixKing FPI 3501B System FPD 500 - Manual (Page 14)

3.1.9 DECISION HEIGHT (DH) ANNUNCIATION
A yellow circle with “DH” in black is
displayed when the set decision height
is reached. The annunciator does not
flash.
3.1.10 FLIGHT DIRECTOR (FD)
ANNUNCIATION
A yellow circle with “FD” in black is dis-
played when the same Flight Director
is selected by both Captain and First
Officer. The annunciator does not
flash.
3.1.11 ADI FAILURE ANNUNCIATIONS
External sensor systems failures are annunciated in black text inside
a red box. Up to six different failures are displayed:
GYRO Attitude system failures. The bank angle pointer, pitch scale,
horizon line and black ground are removed from the display.
FD Flight Director system failures. The command bar causing
the invalid condition will be displayed as folows: Pitch
Command Bar - Full Down, Roll Comand Bar - Full Right,
Decrab Symbol - Full Left
GS Loss of Glideslope Valid during ILS Approach mode. The
glideslope scale and pointer are removed from the display.
R/T Rate of Turn invalid. The rate of turn scale and pointer are
removed from the display.
RWY Loss of LOC Valid or Radio Altitude Valid during ILS
Approach mode. The localizer scale and runway symbol are
removed from the display.
SPD Loss of Speed Command Valid. The speed comand scale
and circle are removed from the display.
Dual installations perform cross-side monitoring and display cross-
side failures in a yellow box in the lower right corner of the ADI dis-
play. For the failure to be displayed, 1) the cross-side sensor failure
must have been displayed on the cross-side display for at least two
seconds, or 2) the cross-side HSI has failed. A black number indi-
cates the station where the failure occurred. A red “X” annunciation in
the yellow box indicates that the cross-side status has not been
EADI/EHSI Displays
3-4 FPD 500 FLAT PANEL DISPLAY SYSTEM
Rev. 0
Jan/97
A
N
20
DH
GS
Figure 3.1-11
Decision Height Annunciator
DIM
20
F
FD
Figure 3.1-12
Flight Director Annunciator