SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
4-35
Electronic Flight Instrument System (EFIS)
D Vertical Speed (Optional) Failure -- Loss of valid vertical speed is
indicated by the following:
— Removing the vertical speed scale
— Removing the vertical speed window
— Displaying a boxed VS flag.
D Glideslope Failure -- Loss of the valid glideslope or VNAV is
indicated by the following:
— removing the scale and pointer
— displaying a boxed GS flag, if in the approach mode.
NOTE: There is no vertical navigation flag.
D Radio Altitude Failure -- Loss of valid radio altitude is indicated by
the following:
— removing the digital readout
— inhibiting DH
— displaying a boxed RA (radio altitude) flag.
D Localizer Failure -- Loss of valid localizer is indicated by the
following:
— removing the scale, and rising runway
— displaying a boxed LOC flag.
D Symbol Generator Internal Failure -- When an internal symbol
generator failure is detected, the display is blanked except for a
boxed SG flag, as shown in Figure 4--28.
Symbol Generator Failure Flag
Figure 4--28